The type of sampling that a research company would use that is performing a study requiring recommendations from other respondents who might be similar to themselves is called "snowball sampling".
"What is snowball sampling? Snowball sampling is a non-probability sampling method that depends on referrals from initial subjects to generate additional subjects. This type of sampling method is used when identifying members of a population to research is difficult or impractical. Snowball sampling is frequently used in research projects where the population is challenging to reach, such as drug users or sex workers.
It is a type of purposive sampling that can be used in both quantitative and qualitative research. In this sampling method, researchers start with a small group of individuals known to have certain characteristics or knowledge of a phenomenon. Then, they ask these individuals to provide additional participants that match the criteria for the study.
In other words, the research company asks one participant to provide recommendations for other respondents that have similar characteristics. This is done so that the researcher can get a representative sample of the population that they want to research. The participants then ask others to participate in the study, and so on, forming a chain of referrals. Snowball sampling is often used in qualitative research, such as case studies and ethnographic research.
In this case, the research company would start by selecting a few individuals who they believe are similar to themselves and who can provide valuable recommendations. These initial participants would then be asked to suggest or refer other individuals who they believe fit the criteria and can provide further recommendations. This process continues, creating a "snowball" effect, where the sample size gradually grows as participants refer others.
Snowball sampling allows researchers to access a population that might be difficult to reach through traditional sampling methods. It relies on the principle that individuals with similar characteristics or experiences are more likely to know others who share those characteristics, thus facilitating the recruitment of participants who are relevant to the study.
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Compare the budgets of Hong Kong, United States of America, and
Korea based on your definition of a budget, in terms of contents,
formats, advantages, and disadvantages, etc.
The budgets of Hong Kong, the United States of America, and Korea differ in contents, formats, advantages, and disadvantages. While each budget has its strengths and weaknesses, they all aim to provide a clear and transparent financial plan for their respective countries.
A budget is a financial plan that estimates expected income and expenditure for a specific period. It may include income, expenses, debts, and savings. Budgets may vary from country to country and can be analyzed by comparing their contents, formats, advantages, and disadvantages. Here are the budgets of Hong Kong, the United States of America, and Korea:
Hong Kong Budget:United States Budget:
Contents: The US budget comprises revenue, expenditures, and deficit or surplus. It includes an analysis of taxes, social security, and Medicare.Format: The US budget is presented in a complex and lengthy format, including tables, graphs, and other financial documents.Advantages: The budget provides detailed information on tax expenditures and encourages public participation in the budget process.Disadvantages: The budget can be challenging to understand due to its complexity, and it may not provide an accurate depiction of federal spending.Korean Budget:
Contents: The Korean budget comprises revenue, expenditures, and surplus or deficit. It includes detailed information on taxes, social security, and public welfare.Format: The Korean budget is presented in a clear and concise format, including tables and charts to aid understanding.Advantages: The budget is easy to understand, and it promotes transparency and accountability. It also provides detailed information on social welfare expenditures.Disadvantages: The budget may not provide an accurate depiction of government spending, and it may not include information on hidden expenditures.Learn more about Budget:
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t−5≤−7 The solution is ??
Answer:
t is less than or equal to -2
1.Consider a 64-bit architecture machine where physical memory is 128GB a.If we would like to run processes as big as 256GB how many bits would be required for the logical address? 38 2 9& 25661 b.If we are using pages of size 4KB, how many bits are needed for displacement into a page? 12 bits 4KB= c.If a single level page table is used, what is the maximum number of entries in this table? 38 26 entries d.What is the size of this single level page table in terms of 4KB pages? 2o Pages e. If a two-level page-table is used and the outer page table is an 4KB page,how many entries does it contain, maximally? f. How many bits of the logical address are used to specify an index into the inner page (page of page table)?
a). 2^38 bytes of memory
b). 12 bits
c). The maximum number of entries in the single-level page table would be 2^38.
d). The size would be 2^38 * 4KB, which equals 2^20 pages.
e). The maximum number of entries it can have depends on the remaining bits of the logical address.
f). The amount of bits required to denote an index into the inner page table is obtained by subtracting the offset and outer page index bits from the logical address.
a. To address a physical memory size of 128GB (2^37 bytes), a 64-bit architecture would require 38 bits for the logical address, allowing access to a maximum of 2^38 bytes of memory.
b. Given that the page size is 4KB (2^12 bytes), 12 bits would be needed to specify the displacement into a page. This means that the lower 12 bits of the logical address would be used for page offset or displacement.
c. With a single-level page table, the maximum number of entries would be equal to the number of possible logical addresses. In this case, since the logical address requires 38 bits, the maximum number of entries in the single-level page table would be 2^38.
d. The size of the single-level page table is determined by the number of entries it contains. Since each entry maps to a page of size 4KB, the size of the single-level page table can be calculated by multiplying the number of entries by the size of each entry. In this case, the size would be 2^38 * 4KB, which equals 2^20 pages.
e. For a two-level page table, the size of the outer page table is determined by the number of entries it can contain. Since the outer page table uses 4KB pages, the maximum number of entries it can have depends on the remaining bits of the logical address. The number of bits used for the index into the outer page table is determined by subtracting the bits used for the inner page index and the offset from the total number of bits in the logical address.
f. The number of bits used to specify an index into the inner page table can be determined by subtracting the bits used for the offset and the bits used for the outer page index from the total number of bits in the logical address. The remaining bits are then used to specify the index into the inner page table.
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Billy invested $18 of savings in two major business enterprises which paid interest at the rate of 3% and 6%, respectively. If his annual income for these two enterprises was equivalent to a return of 5% on the entire investment, find how much he invested at 3%.
Answer:
$6
Step-by-step explanation:
System of equations
x+y = 18
0.03x+0.06y = 5% of 18 = 0.9
(0.03x+0.06y=0.9)*100 = 3x+6y=90
(3x+6y=90)÷3 = x+2y=30
Substract (1)-(2)
x+2y=30 ... (1)
x+y=18 ... (2)
y=12
x+12=18
x=6
Thanks.
in a survey conducted on an srs of 200 american adults, 72% of them said they believed in aliens. give a 95% confidence interval for percent of american adults who believe in aliens.
American adults believes in alien for the given 95% confidence interval and sample surveyed is in the interval range of ( 0.66 , 0.78 ).
As given in the question,
Sample of American adults surveyed 'n' = 200
Percent of people believes in aliens are success 'p'= 72%
= 0.72
Percent of people who don't believes (failure) in aliens ' 1 - p' = 1 - 0.72
= 0.28
95% Confidence interval that represents Americans adults who believes in aliens
value of z - score for 95% confidence interval = ± 1.96
Margin of error 'MOE'= (z-score)√p ( 1- p) /n
= ( 1.96)√(0.72 × ( 1 - 0.72 )/ 200
= 1.96 ( √0.2016 / 200)
= 1.96 ×√0.001008
= 0.063
Lower limit = p - MOE
= 0.72 - 0.063
= 0.66
Upper limit = p + Margin of error
= 0.72 + 0.063
= 0.78
Therefore, 95% confidence interval with sample size of the Americans adults who believes in alien are in the interval of ( 0.66 , 0.78 ).
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A map represents every 5 miles with 1 centimeter. If two cities are 45 centimeters apart on the map, what is the actual distance between the two cities?
Answer:
225 miles
Step-by-step explanation: I like your name LOL
Find f[g(x)] and g[f(x)] for the given functions. 3 f(x) = -x³ +3, g(x) = 4x+7 (Simplify your answer. Do not factor.) (Simplify your answer. Do not factor.) f[g(x)] = g[f(x)] =
The value of f[g(x)] is - 64x³ - 336x² - 588x - 340 and the value of g[f(x)] is -4x³ + 19
The functions are as follows; f(x) = -x³ +3 and g(x) = 4x+7
The value of f[g(x)] is obtained by replacing every x in f(x) with the value of g(x) as given below
f[g(x)] = f(4x + 7) = - (4x + 7)³ + 3
When we expand (4x + 7)³, it gives us 64x³ + 336x² + 588x + 343
Then
f[g(x)] = - 64x³ - 336x² - 588x - 340
Similarly, g[f(x)] is obtained by replacing every x in g(x) with the value of f(x) as shown below;
g[f(x)] = g(-x³ + 3) = 4(-x³ + 3) + 7g
[f(x)] = -4x³ + 19
Therefore,
f[g(x)] = - 64x³ - 336x² - 588x - 340
g[f(x)] = -4x³ + 19
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suppose z=x2siny, x=1s2 3t2, y=6st. a. use the chain rule to find ∂z∂s and ∂z∂t as functions of x, y, s and t
The required partial derivatives ∂z/∂s and ∂z/∂t are 18t³ sin(6st) + 27/2 t⁵ cos(6st) and 9t⁴ sin(6st) + 27/2 t⁴ cos(6st), respectively, as functions of x, y, s, and t.
Given, z = x²sin(y),
Where x = 1/2 3t² and y = 6st.
We are required to find ∂z/∂s and ∂z/∂t using the chain rule of differentiation.
Using the Chain Rule, we have:
\(\frac{dz}{ds} = \frac{\partial z}{\partial x} \frac{dx}{ds} + \frac{\partial z}{\partial y} \frac{dy}{ds}\)
\(\frac{dz}{dt} = \frac{\partial z}{\partial x} \frac{dx}{dt} + \frac{\partial z}{\partial y} \frac{dy}{dt}\)
Let's find out the required partial derivatives separately:
Given, x = 1/2 3t²
\(\frac{dx}{dt} = 3t\)
Given, \(y = 6st\frac\\\)
\({dy}/{ds}= 6t\)
\(\frac{dy}{dt} = 6s\)
\(\frac{\partial z}{\partial x} = 2x sin(y)\)
\(\frac{\partial z}{\partial y}= x² cos(y)\)
Now, substituting the values of x, y, s, and t, we get:
\(\frac{\partial z}{\partial x} = 2(1/2 3t²) sin(6st)\)
= \(3t² sin(6st)\)
\(\frac{\partial z}{\partial y}\) = (1/2 3t²)² cos(6st)
= \(9/4 t⁴ cos(6st)\)
Substituting these values in the chain rule formula:
\(\frac{dz}{ds}\)= 3t² sin(6st) (6t) + 9/4 t⁴ cos(6st) (6t)
= 18t³ s in (6st) + 27/2 t⁵ cos(6st)
Therefore, ∂z/∂s as a function of x, y, s, and t is:
\(\frac{\partial z}{\partial s} = 18t³ sin(6st) + 27/2 t⁵ cos(6st)\)
Substituting the values of x, y, s, and t in the formula:
\(\frac{dz}{dt} = 3t² sin(6st) (3t²) + 9/4 t⁴ cos(6st) (6s)\)
= \(9t⁴ s in (6st) + 27/2 t⁴ cos(6st)\)
Therefore, ∂z/∂t as a function of x, y, s and t is:
\(\frac{\partial z}{\partial t} = 9t⁴ sin(6st) + 27/2 t⁴ cos(6st)\)
Hence, the required partial derivatives ∂z/∂s and ∂z/∂t are 18t³ sin(6st) + 27/2 t⁵ cos(6st) and 9t⁴ sin(6st) + 27/2 t⁴ cos(6st), respectively, as functions of x, y, s, and t.
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What is the area of this rhombus?
Answer:
90 m²
Step-by-step explanation:
\(A=\frac{pq}{2}\)
10 · 18
180
180 ÷ 2
90
Answer:
22.5
Step-by-step explanation:
9 times 5 = 45
45/2 = 22.5
You are skiing on a mountain. Find the distance X from you to the base of the mountain. Round to the nearest foot.
Using a trigonometric relation we can see that the value of x is 3,549.3 ft
How to find the value of x?We can see that we have a right triangle, where x is the hypotenuse.
We know one angle of the triangle and the opposite cathetus of said angle.
Then we need to use the trigonometric relation:
sin(a) = (opposite cathetus)/hypotenuse.
Replacing the things that we know we will get.
sin(25°) = 1500ft/x
Solving that for x we will get:
x = 1500ft/sin(25°)
x = 3,549.3 ft
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\[ \text { Cost }=0.2 q^{3}-6 q^{2}+80 q+100 \] Marginal cost is: \[ 0.6 q^{2}-12 q+80 \] The value of the average cost when output \( =20 \) units is \( \$ \mid \) (round your answer to the nearest p
The marginal cost function is 0.6q^2 −12q+80.
To calculate the average cost, we need to divide the total cost by the quantity of output. In this case, the total cost is given by the function
0.2q ^3-6q^2+80q+100 q represents the quantity of output. Therefore, the average cost can be expressed as AC(q)=C(q)/q
To find the value of the average cost when the output is 20 units, we substitute q=20 into the average cost function:
AC(20)= C(20)/20
By plugging in the value of 20 into the cost function 0.2q ^3-6q^2+80q+100
.Then, dividing C(20) by 20 will give us the value of the average cost when the output is 20 units.
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6. Which shape has a larger area: a rectangle that is 7 inches by inch, or a square with
side length of 2 inches? Show your reasoning.
ouch the
aps.
Answer:
Rectangle = L x b = 7 x 7 = 49 inch^2
square = a^2 = 2^2=4 inch^2
Therefore the area of rectangle is more because it's area is greater than square
rectangle 's area > square's area.
James bought a motorcycle for $2000 and sold it a year later for $1500. What is the percentage decrease in the cost of the car?
Answer:
Step-by-step explanation:
what is 200x+344=3244x45321
Answer:
7306649. 9
Step-by-step explanation:
Answer:
x=735104.9
Step-by-step explanation:
200x+344=3244×45321
200x+344=147021324
200x=147021324–344
200x=147020980
x=147020980÷200
x=735104.9
the number of cookies in a shipment of bags are normally distributed, with a mean of 64 and a standard deviation of 4. what percent of bags of cookies will contain between 64 and 68 cookies?
The percentage of bags of cookies that will contain between 64 and 68 cookies is approximately 18.23%.The number of cookies in a shipment of bags is normally distributed, with a mean of 64 and a standard deviation of 4.
What percentage of bags of cookies will contain between 64 and 68 cookies
When X is normally distributed with mean µ and standard deviation σ, the z-score formula can be used to find the probability that X is between two values.
Z = (X - µ) / σ
First, we convert both 64 and 68 to z-scores:
Z for 64 cookies = (64 - 64) / 4 = 0Z for 68 cookies = (68 - 64) / 4 = 1
Next, we find the probability that X is between these two z-scores using a standard normal distribution table or calculator:
Prob (0 < Z < 1) = 0.3413 - 0.5(0) - 0.159
= 0.1823
So, the percentage of bags of cookies that will contain between 64 and 68 cookies is approximately 18.23%.
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A toy ball expands and contracts when it is completely closed it has a diameter of 9.5 inches find the volume of the spear when it is completely closed do use 3.14 then round to the nearest whole cubic inch
Answer:
449 cubic inches
Step-by-step explanation:
The diameter of the ball when closed is 9.5 inches. This will also be the diameter of the ball when it is expanded.
Use the formula for finding the volume of a sphere
\(V = \frac{4}{3}\pi r^3\)
where V is the volume and r the radius
r = diameter/2 = 9.5/2 = 4.75
\(V = \frac{4}{3}\cdot\pi\cdot 4.75^3\)
Using value of \(\pi = 3.14\),
\(V = \frac{4}{3}\cdot\ 3.14\cdot 4.75^3\)
\(V = \frac{4}{3}\cdot\ (3.14)\cdot (107.171)\) \(\approx\;448.69\) \(= 449\) (rounded to nearest cubic in)
Find the function value, if possible.
g(t) = 7t²- 6t+ 4
The function g(t) = 7t² - 6t + 4 is a quadratic function. To find the value of g(t), we can substitute a specific value for t into the function and evaluate it.
For example, if we want to find g(2), we substitute t = 2 into the function:
g(2) = 7(2)² - 6(2) + 4
= 7(4) - 12 + 4
= 28 - 12 + 4
= 20
Therefore, g(2) = 20.
In general, you can find the value of g(t) by substituting the desired value of t into the function and simplifying the expression.
Keep in mind that quadratic function can have different values for different inputs, so the value of g(t) will vary depending on the chosen value of t.
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negative five divided by five sevenths
Answer:
-7
Step-by-step explanation:
-5 ÷ 5/7
⇒ -5 × 7/5
⇒ -7
hope this helps !
pls mark as brainliest :))
\(\\ \sf\longmapsto -5\div \dfrac{5}{7}\)
\(\\ \sf\longmapsto -5\times \dfrac{7}{5}\)
\(\\ \sf\longmapsto -1(7)\)
\(\\ \sf\longmapsto -7\)
ill give brainlist if good
The correct solution is 24cm.
What is a property of similarity?
When two objects have the same shape but different sizes, they can be said to be comparable. This indicates that comparable shapes superimpose one another when amplified or demagnified. The term "Similarity" refers to this characteristic of like shapes.
Here, we have
Given: ∆ ABC ~ ∆ DEF
BC = 16cm
EF = 12cm
DE = 18cm
We have to find the correct solution.
By the property of similarity,
The corresponding sides are proportional.
So, AB/DE = BC/EF = AC/EF
AB/DE = BC/EF
x/18 = 16/12
x = 16×18/12
x = 24cm
Hence, the correct solution is 24cm.
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JJ buys a video game for $50.00. If the sales tax is 8.25%
Enter the sum, in dollars, that JJ paid, including tax.
Answer:
$54.26
Step-by-step explanation:
Convert the percentage into a decimal by moving the decimal point 2 places to the left or divide by 100.
This will give you .0825.
Multiply this number by $50 and add it to it
$54.26
Hope this helps! Good luck!! :)
The width of a sandbox is represented by x+5 The length of the sandbox is double the width. Determine an expression that would represent the area of the sandbox. To earn full credit, show your work using a method explained in the Orientation.
Answer: (x+5)(2x+10)
Step-by-step explanation: I see your comment, so try to help you fast, I am in a rush, so can't type all the work on paper yet, sorry!
Hello could you please help me with these problems?14. Write an equation in point-slope form for the line that has a slope of 4/3 and passes through (3,0).
1) Point slope form equations are written according to this general formula:
\((y-y_1)=m(x-x_1)_{}\)2) Since we've got the slope and one point we can plug them into the formula:
\(\begin{gathered} (y-0)=\frac{4}{3}(x-3) \\ y=\frac{4}{3}x-4 \end{gathered}\)That yields the equation of the line y=4/3x -4 (slope-intercept form). So in Point Slope form, the answer is:
(y-0)=4/3(x-3)
Kingsman Taylor makes tuxedos for men. During a particular week, each of the seven employees worked 42 hours to produce a batch of 96 tuxedos. The tuxedos are sold to retail distribution at $225 each. What is the labor productivity of this manufacturing process in terms of dollars per labor hour? (Enter your response rounded to two decimal places. )
The labor productivity of this manufacturing process in terms of dollars per labor hour is $73.47.
To find the labor productivity of this manufacturing process in terms of dollars per labor hour, we need to calculate the total revenue from the tuxedos and divide it by the total number of labor hours.
Total revenue from tuxedos = 96 tuxedos * $225 per tuxedo
= $21,600
Total number of labor hours = 7 employees * 42 hours per employee
= 294 labor hours
Labor productivity = Total revenue / Total number of labor hours
= $21,600 / 294 labor hours
= $73.47 per labor hour
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Square MNPR has points M (3,8) and N (-2, 1). What is the slope of MN?
Is it... A. – 5/7
B. 7/5
C. 7
Or, is it D. ? The slope cannot be determined.
I’ll give brainliest to the first person !!!
Answer:
A
Step-by-step explanation:
its a!!!!!!!!!!!!!!!!!!!!
Slope of the given line MN is 7 / 5
Given coordinates;
M(3,8) and N (-2, 1)
Find:
Slope of MN
Computation:
Slope of a line = (y2 - y1) / (x2 - x1)
Slope of MN = (1 - 8) / (-2 - 3)
Slope of MN = (-7) / (-5)
Slope of MN = 7 / 5
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help asap i give big brain!! which diagram shows lines converging?
Answer:
Diagram A
Step-by-step explanation:
Diagram A shows the ''converging lines.''
What is Line segment?
Line segment is a part of the line which have two endpoints and bounded by two distinct end points and contain every point on the line which is between its endpoint.
Given that;
The diagram is shown in figure.
Now,
We know that;
Two or more lines that get closer and closer towards the end are called the Converging lines.
Thus, Diagram A shows the ''converging lines.''
Therefore, Diagram A shows the ''converging lines.''
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Please help quick!!!
Answer:
D
Step-by-step explanation:
-6 times 3 is obviously -18 and if you type in -6 times -2/3 on a caculator it gives you 4 and its positive because when you times two negatives you get a positive
The use of heuristics rather than algorithms is most likely to _____.
A. yield more accurate solutions to problems
B. save time in arriving at solutions to problems
C. minimize the overconfidence phenomenon
D. involve greater reliance on language skills
B. save time in arriving at solutions to problems. Heuristics are problem-solving shortcuts or rules of thumb that can save time when arriving at solutions to problems.
The use of heuristics rather than algorithms is most likely to save time in arriving at solutions to problems. Heuristics are mental shortcuts or rules of thumb that are used to solve problems quickly and efficiently, whereas algorithms are step-by-step procedures for solving problems. While algorithms may produce more accurate solutions, they can be time-consuming to apply. Heuristics, on the other hand, allow for quick problem-solving and are often based on our language skills and prior knowledge. However, relying too heavily on heuristics can sometimes lead to errors or the overconfidence phenomenon.
They might not always yield the most accurate solutions compared to algorithms, which are step-by-step, systematic procedures that guarantee a correct solution. Heuristics usually rely less on language skills and do not necessarily minimize the overconfidence phenomenon.
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Heuristics are mental shortcuts or rules of thumb that people use to make decisions or solve problems quickly and efficiently.
B. save time in arriving at solutions to problems . The correct answer is:
Heuristics are mental shortcuts or rules of thumb that people use to make decisions or solve problems quickly and efficiently. They are simple and often automatic strategies that allow individuals to make judgments or decisions without engaging in a lengthy, deliberate, and systematic process of problem-solving.
One of the main advantages of using heuristics is that they can save time in arriving at solutions to problems. Instead of analyzing all available information and considering all possible alternatives, heuristics allow individuals to quickly narrow down options and make decisions based on simplified cognitive processes. This can be especially useful in situations where time is limited or when individuals need to make decisions on the spot.
However, heuristics are not always foolproof and can sometimes lead to errors or biases in decision-making.
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PLEASE HELP!! WILL GIVE BRAINLIEST IF YOU ANSWER SOON!!!
Answer:
b
Step-by-step explanation:
math
I NEED HELP ON THIS ASAP!!!!!!!
The range of values that we are permitted to enter into our function is known as the domain of a function. The x values for a function like f make up this set (x). A function's range is the collection of values it can take as input.
What does a calculus domain mean?The collection of all potential inputs for a function is its domain. For instance, the domain of f(x)=x2 and g(x)=1/x are all real integers with the exception of x=0.
How to Determine a Function's Range?Think about the function y = f. (x). The range of the function is the range of all the y values, from least to maximum. Substitute all possible values of x into the provided expression of y to see whether it is positive, negative, or equal to other values.
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Is this congruent by SSS, SAS, AAS, ASA? :)
Answer:
AAS
Step-by-step explanation:
Given triangles are congruent by AAS test.