Determine whether the variable is qualitative or quantitative.
Hair color
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Part 1
Is the variable qualitative or quantitative?
A.
The variable is qualitative because it is an attribute characteristic.
B.
The variable is quantitative because it is an attribute characteristic.
C.
The variable is qualitative because it is a numerical measure.
D.
The variable is quantitative because it is a numerical measure.
Answers
Answer:
Qualitative variable
A. The variable is qualitative because it is an attribute characteristic.
What are Quantitative and Qualitative variables?A qualitative variable is one in which the "true" or naturally occurring levels or categories taken by that variable are not described as numbers but rather by verbal groupings.
Example: levels or categories of hair color (black, brown, blond)A quantitative variable on the other hand are those in which the natural levels take on certain quantities (e.g. price, travel time)
That is, quantitative variables are measured in some numerical unit (eg. pesos, minutes, inches, etc.)How is hair color a qualitative variable?Because hair color is a categorical variable, it is a qualitative variable too. This is because hair color can be put into different categories depending on the color of someone or something's hair. Someone could have blond, brown, or black hair; they might even have red hair. It's all different and are attributed characteristic, they are all put into different categories, but can only be measured statistically while remaining constant (with different amounts).
What is a numerical variable and what is a categorical variable?A categorical variable is a category or type. For example, hair color is a categorical value or hometown is a categorical variable. Species, treatment type, and gender are all categorical variables.
A numerical variable is a variable where the measurement or number has a numerical meaning. For example, total rainfall measured in inches is a numerical value, heart rate is a numerical value, number of cheeseburgers consumed in an hour is a numerical value.
A categorical variable can be expressed as a number for the purpose of statistics, but these numbers do not have the same meaning as a numerical value. For example, if I am studying the effects of three different medications on an illness, I may name the three different medicines, medicine 1, medicine 2, and medicine 3. However, medicine three is not greater, or stronger, or faster than medicine one. These numbers are not meaningful.
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Related Questions
express 7π/6 in degrees
Answers
Answer:
210°
Step-by-step explanation:
To change from radians to degrees, multiply 7π/6 by 180/π
That will give 210°
Would appreciate a Brainliest if this helped :)
Ik its another one of these
Find the measure of angle x in the figure below:
Answers
Step by step:
Lemme get Brainly:)
Type the standard form of three hundred thousand two hundred one
Answers
━━━━━━━━━━━━━━━ ♡ ━━━━━━━━━━━━━━━
Standard form is numbers only.
Examples of standard numbers are 4, 225, or 9,002
A thousands number has 4 digits.
A hundreds number has 3 digits.
A tens number has 2 digits.
A regular number has 1 digit (itself).
Three hundred means 300.
Three hundred thousand, would be 300 times 1,000 (one thousand), or adding 3 zeros.
Two hundred is 200.
One is 1.
300 times 1,000 is 300,000.
300,000 and 200 is 300,200.
If the ones digit has a 1, then the number is 300,201.
Three hundred thousand, two hundred one written in standard form is 300,201.
━━━━━━━━━━━━━━━ ♡ ━━━━━━━━━━━━━━━
Three hundred thousand, two hundred one written in standard form is 300,201.
What is an expression?Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.
A thousand number has 4 digits.
A hundred number has 3 digits.
A tens number has 2 digits.
A regular number has 1 digit (itself).
Three hundred means 300.
Three hundred thousand would be 300 times 1,000 (one thousand), or adding 3 zeros.
Two hundred is 200.
One is 1.
300 times 1,000 is 300,000.
300,000 and 200 is 300,200.
If the one digit has a 1, then the number is 300,201.
Three hundred thousand, two hundred one written in standard form is 300,201.
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What kind of transformation is illustrated in this figure?
Answers
The transformation illustrated in the figure is translation.
What is Translation?Translation is a Transformation process in which the size or shape of a figure is not changed rather it only changes the coordinates of the vertices that make up that shape by moving them from one point to another.
Analysis:
Both shapes are congruent, since all the vertices remain in their respective positions even though they were moved and no change in the shape or size, then the transformation process is Translation.
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It's possible to build a triangle with side lengths of 4, 4, and 16
Answers
Answer:
Yes it's possible to make a triangle with 4, 4 and 16.
But if it also has 2 equal angles along with the equal sides (4 and 4), you can call it isosceles triangle.
Compare y= -3x + 2 and x - 3y = 9.
Answers
d - 41 = 19
Choose the answer that shows what to do in the process step, and what the solution (answer is).
Question Options:
add 41; d = 60
subtract 41; d = 60
multiply by 41; d = 60
divide by 41; d = 60
Answers
Answer:
see explanation
Step-by-step explanation:
add 41; d = 60
Solve the system of equations using the substitution or elimination method.
y = 4x - 7
4x + 2y = -2
.
Show your work
Correct x and y
Answers
The solution to the system of equations is x = 1 and y = -3.
To solve the system of equations using the substitution or elimination method, let's start with the substitution method.
Given equations:
y = 4x - 7
4x + 2y = -2
We'll solve equation 1) for y and substitute it into equation 2):
Substituting y from equation 1) into equation 2):
4x + 2(4x - 7) = -2
4x + 8x - 14 = -2
12x - 14 = -2
Now, we'll solve this equation for x:
12x = -2 + 14
12x = 12
x = 12/12
x = 1
Now that we have the value of x, we can substitute it back into equation 1) to find y:
y = 4(1) - 7
y = 4 - 7
y = -3
Therefore, the solution to the system of equations is x = 1 and y = -3.
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I have to add this problem
5/8+2/8
giving 10 points:)
Answers
The addition of the given fraction expression is 7/8.
In mathematics, an expression is a combination of numbers, symbols, and/or operators that represents a mathematical quantity or relationship. It can be a simple combination of numbers or a more complex combination involving variables, functions, or other mathematical constructs.
When adding fractions with the same denominator, you simply add the numerators and keep the denominator the same.
In this case, both fractions have a denominator of 8, so we can add their numerators:
5/8 + 2/8 = (5 + 2)/8 = 7/8
Thus, the sum of 5/8 and 2/8 is 7/8.
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Which of the following types of numbers is irrational?
The number pi
A whole number
fractions
A decimal that terminates
Answers
An irrational number is a number that cannot be expressed as a fraction or a ratio of two integers. Let's examine each option:
1. The number pi: Pi (π) is an irrational number. It is a mathematical constant representing the ratio of a circle's circumference to its diameter. Pi cannot be expressed as a fraction or a terminating decimal. It is an infinite, non-repeating decimal (approximately 3.14159...).
2. A whole number: Whole numbers are integers without any fractional or decimal parts. They include positive numbers (0, 1, 2, 3, ...) and their negatives (-1, -2, -3, ...). Whole numbers can always be expressed as fractions by setting the denominator as 1, making them rational numbers.
3. Fractions: Fractions are numbers expressed as the ratio of two integers. They can be written in the form a/b, where a and b are integers and b is not zero. All fractions are rational numbers because they can be expressed as the division of two integers.
4. A decimal that terminates: A terminating decimal is a decimal number that has a finite number of digits after the decimal point. Terminating decimals can always be expressed as fractions, making them rational numbers. For example, 0.25 can be written as 1/4.
Based on the explanations above, the only option that represents an irrational number is "The number pi."
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factor step by step:
x^2+1
Answers
Answer:
(x + i) (x - i)
Step-by-step explanation:
The expression x^2 + 1 is a sum of squares, which means that it cannot be factored using real numbers. However, it can be factored using complex numbers.
To factor x^2 + 1, we can use the fact that i^2 = -1, where i is the imaginary unit.
We can rewrite x^2 + 1 as:
x^2 + 1 = x^2 - (-1)
Now, we can use the difference of squares formula to factor x^2 - (-1):
x^2 - (-1) = (x + i)(x - i)
Therefore, the factored form of x^2 + 1 is:
(x + i)(x - i)
Sally bought 1.4 kilograms of bananas for AED 7.35 $ a kilo. How many kilograms
of apples sold at 10.20 $ per kilogram should you buy so that the kilogram of fruit
costs 8.15 $
Answers
You should buy approximately 1.067 kilograms of apples at $10.20 per kilogram in order to have the kilogram of fruit cost $8.15.
Let's assume that Sally bought x kilograms of apples at $10.20 per kilogram.
The total cost of bananas is given as AED 7.35 per kilogram, and Sally bought 1.4 kilograms of bananas. So, the cost of the bananas is:
Cost of bananas = AED 7.35 * 1.4 = AED 10.29
The total cost of apples is given by the equation:
Cost of apples = $10.20 * x
The total cost of the fruits combined should be AED 8.15 per kilogram. So, the equation becomes:
Total cost of fruits = (Cost of bananas + Cost of apples) / (1.4 + x) = AED 8.15
Substituting the known values, we have:
(10.29 + 10.20 * x) / (1.4 + x) = 8.15
Cross-multiplying and simplifying, we get:
10.29 + 10.20 * x = 8.15 * (1.4 + x)
Expanding the equation, we have:
10.29 + 10.20 * x = 11.41 + 8.15 * x
Rearranging the equation, we get:
10.20 * x - 8.15 * x = 11.41 - 10.29
1.05 * x = 1.12
Dividing both sides by 1.05, we find:
x = 1.12 / 1.05
x ≈ 1.067
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What is the maximum of f(x)=sin(x)
Answers
Answer:
1
Step-by-step explanation:
The maximum of f(x) = sin(x) is 1. The sine function has a range of -1 ≤ sin(x) ≤ 1. The sine function oscillates between -1 and 1, reaching a maximum of 1 when x = π/2 and a minimum of -1 when x = -π/2. If you look at a graph of
y = sin(x) you can see this.
Answer: The Maximum Value of f(x)=sin(x) is 1 , when x=90°.
Step-by-step explanation:
Property of Sine function:
Sin(x)=0 when x=90°,180°,360°The maximum and Minimum value of Sin(x) is 1 and -1 respectively, when and x=270° respectively.The range of values of sin(x) is -1 to 1.Read more on the Sine function:
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i need help can someone help me right now!!!!!!
Answers
(a) | BD | bisects | AC | (reason : Given)
(b) |AD| ≅ |CD| (reason: |BD| is the perpendicular bisector of segment AC).
(c) ∠ABD ≅ ∠CBD (reason: | BD | bisects angle ABC)
(d) ∠A ≅ ∠ C (reason: complementary angles of a right triangle)
What is the complete proof of the congruent angles?Congruent angles are the angles that have equal measure. So all the angles that have equal measure will be called congruent angles.
From the first statement, we will complete the flow chart as follows;
line BD bisects line AC (reason : Given)
line AD is congruent to line CD (reason: line BD is the perpendicular bisector of segment AC)
Angle ABD is congruent to angle CBD (reason: line BD bisects angle ABC)
Angle A is congruent to angle C (reason: angle ABD = angle CBD, and both triangles ABD and CBD are right triangles).
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Owen paid $15 to download some of his favorite songs. He paid $2.50 per song. How many songs did he download? Owen downloaded songs.
Answers
Answer:
Multiply and then Divide
Step-by-step explanation:
solve 81=x to the second power for x
Answers
Answer: 162
Step-by-step explanation: 81 times 2 since second power is (2)
PLEASE HELP FAST !!!!!!!!
Identify the equation that represents a quadratic relationship
Answers
Answer:
Step-by-step explanation:
Quadratic means squared equation so
the first one is your answer.
y= 4x²
Find the two solutions to the equation below.
(x – 3)(x − 2) = 0
Anyone know how to do it
Answers
Answer:
You have two brackets..divide them as
x-3=0 and x-2=0
so x=3, x=2
The solutions to the equation ( x – 3 )( x − 2 ) = 0 using factors equal to zero are x = 3 and x = 2.
To find the solutions to the equation ( x – 3 )( x − 2 ) = 0, we set each factor equal to zero and solve for x. This is because the product of two factors is equal to zero only if at least one of the factors is zero.
Setting ( x – 3 ) = 0:
x – 3 = 0
x = 3
Setting ( x − 2 ) = 0:
x − 2 = 0
x = 2
Therefore, the solutions to the equation ( x – 3 )( x − 2 ) = 0 are x = 3 and x = 2.
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If f(c) =x+7 and g(x)= 1/x-13x, what is the domain of (f circle g)(x)
Answers
Answer:
last option, {x|x≠13}
Step-by-step explanation:
(f of g)(x) means f(x) x g(x):
(x + 7) x (1 / x - 13) = (x + 7) / (x - 13)
domain is all possible x values which is the denominator, x - 13
x - 13 = 0
Interval notation: (−∞,13)∪(13,∞) this means x does not equal 13
express each definite integral in terms of u but don't evaluate
Answers
Recall that the change of variable theorem states that:
\(\begin{gathered} \text{If }\varphi\colon\lbrack a,b\rbrack\rightarrow I\text{ is a differentiable function},\text{ with a continuous derivative, and }I \\ \text{is a interval, then:} \\ \int ^b_af(\varphi(x))\varphi^{\prime}(x)dx=\int ^{\varphi(b)}_{\varphi(a)}f(u)du\text{.} \\ \end{gathered}\)Now, notice that:
\(\begin{gathered} u^{\prime}(x_{})=2x, \\ u\colon\lbrack-1,2\rbrack\rightarrow\lbrack0,3\rbrack. \end{gathered}\)Therefore, if we set f(x)=x², and use the change of variable theorem we get:
\(\begin{gathered} \int ^2_{-1}6x(x^2-1)^2dx=3\int ^2_{-1}f(x^2-1)^{}\cdot2xdx \\ =\int ^{u(2)}_{u(-1)}f(u)^{}du=\int ^3_0u^2du\text{.} \end{gathered}\)Answer:
\(\int ^3_0u^2du\text{.}\)what’s the answer to this i don’t get i
Answers
Answer:
32768x¹⁰
Step-by-step explanation:
by applying the law of indices
multiply the powers inside the parentheses with the power outside of the parentheses
then evaluating 2¹⁵ equals 32768
multiply by x¹⁰
the answer is 32768x¹⁰
circles of radii , and are mutually externally tangent, where and are relatively prime positive integers. find
Answers
The ratio of the areas of the two circles equals the square of the ratio of their radii: = 1/4
Let O1 be the center of the larger circle and O2 be the center of the smaller circle. T is the tangent point between the two circles.
The distance between their centers, O1O2, is equal to the sum of their radii, i.e., r1 + r2.
The Pythagorean theorem gives us:
(O1O2)^2 = r1^2 + r2^2
By substituting r1, r2, and O1O2 values, we obtain:
(r1 + r2)^2 = r1^2 + r2^2
By broadening and simplifying, we get:
2r1r2 = r2^2
When both sides are divided by r22, we get:
2r1/r2 = 1
So, r1/r2 = 1/2. r2 = 2r1.
The ratio of the areas of the two circles equals the square of the ratio of their radii:
A1/A2 = (r1/r2)^2 = 1/4
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need help on This question I’ll give you brainliest
Answers
The area swept by the blade in model 3 is 66932 square feet.
What is area?An object's area is how much space it takes up in two dimensions. It is the measurement of the quantity of unit squares that completely cover the surface of a closed figure. The word "area" refers to a free space. A shape's length and width are used to calculate its area. Unidimensional length is expressed in terms of feet (ft), yards (yd), inches (in), etc. But a shape's area is a two-dimensional measurement.
The blade length for model 3 is r = 146.
The area of the circle is given by:
A = pi(r)²
A= (3.14) (146)²
A = 66932
Hence, the area swept by the blade in model 3 is 66932 square feet.
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If Audrey wanted to solve this equation using the square root method, which answer shows the correct sequence of steps?
x2 + 5 = 41
a. Take the square root of both sides
b. Subtract 41 from both sides, then square root both sides.
c. Subtract 5 from both sides, then square root both sides.
d. Add 5 to both sides, then square root both sides
Answers
Answer:
C
Step-by-step explanation:
subtract 5 from both sides
Write an equation for each line (L,P,N,M)
Answers
do you have it on edg???
please help and answer quickly
Answers
Answer:
60
Step-by-step explanation:
Q1 ? Help Robert is 7 ½ years old. How many months old is he?
Answers
Answer:
Step-by-step explanation:
If Robert is 7 1/2 months old you need to multiply 7 1/2 by 12 because there are 12 months in a year.
7x12=84
1/2x12=6
6+84=90
Mr. Smith and Mr. Stein were driving to a business meeting 140 miles from their office. Mr. Smith drove the first
miles, then Mr. Stein drove the rest of the way.
Write an algebraic expression for how many miles Mr. Stein drove.
Answers
The distance that Mr. Stein drove can be represented by the expression: \(140 - x\)
What is an algebraic expression?A mathematical phrase made up of one or more variables, constants, and arithmetic operations like addition, subtraction, multiplication, and division is known as an algebraic expression. Exponentiation and other mathematical operators could also be present.
Let's assume that Mr. Smith drove "x" miles before Mr. Stein took over the driving.
Then, the total distance they traveled is 140 miles.
So, the distance that Mr. Stein drove can be represented by the expression:
140 - x
Therefore, This is because if Mr. Smith drove "x" miles, then the remaining distance that needed to be covered by Mr. Stein would be the difference between the total distance of 140 miles and the distance already driven by Mr. Smith.
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Write the value of the underlined digit in words 5.3479? 7 being the underlined number.
Answers
The place value of 7 in words in 5.3479 is seven thousandths
The given number is 5.3479
The underlined digit has been identified as 7
The place values of each of the digits in 5.3479 are:
5 = 5 units
3 = 3 tens
4 = 5 hundredths
7 = 7 thousandths
9 = 9 ten thousandths
Therefore, the place value of 7 in words in 5.3479 is seven thousandths
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There are 40 students in a course: 15 freshmen, 8 sophomores, 12 juniors and 5 seniors. One student is selected at random to attend a workshop and report back to the class. What is the probability that the chosen student is a sophomore
Answers
Answer:
Step-by-step explanation:
There are 40 students in total, of which 8 are sophomores. So the probability of selecting a sophomore at random is:
P(Sophomore) = Number of Sophomores / Total Number of Students
= 8 / 40
= 0.2 or 20%
Therefore, the probability that the chosen student is a sophomore is 0.2 or 20%.