The table displays the weight progress of a puppy at the end of week 4. If the relationship between time and weight is linear, how much did the puppy weigh at birth? (I got 7.0, and that's not an answer available)
A. 5.5 pounds
B. 6 pounds
C. 7.5 pounds
D. 16 pounds

The term for this kind of sample is cluster sampling

Given

that, At a major ten university, 200 of the 30,000 undergraduate students and 100 of the 5,000 graduate students are chosen to represent a sample of student opinion.

What is cluster sampling ?

Cluster sampling involves breaking up a population into smaller units called clusters. Then, they randomly select a sample from each of these clusters. Cluster sampling is a probability sampling technique that is frequently used to examine large populations, especially those that are widely geographically dispersed.

Researchers frequently refer to pre-existing groups like cities or schools when referring to clusters. With an SRS of 200 students and an SRS score of 100, clusters have been utilized in this instance. Cluster sampling is the name given to this type of sample as a result.

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Linear regression is a statistical method used to model the relationship between a dependent variable and one or more independent variables. It aims to find a linear equation that best fits the observed data points, allowing for the prediction of the dependent variable based on the independent variables.

In more detail, linear regression assumes a linear relationship between the dependent variable and the independent variables. The method estimates the parameters of the linear equation by minimizing the sum of the squared differences between the observed data points and the predicted values. This is typically done using a technique called ordinary least squares (OLS) regression. The resulting linear equation can be used to make predictions or infer the impact of the independent variables on the dependent variable.

Linear regression is widely used in various fields, including economics, finance, social sciences, and machine learning. It provides a simple and interpretable way to analyze and understand the relationship between variables. However, it is important to note that linear regression assumes certain assumptions about the data, such as linearity, independence of errors, and homoscedasticity. Violations of these assumptions can affect the accuracy and reliability of the regression model.

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Based on the given pictures:

Angle ∠1 has a more than 90° angle, means that it is classified as obtuse angle.

Angle ∠2 has a less than 90° angle, means that it is classified as an acute angle.

∠ABC is a straight angle because it creates a straight line with 180°.

Angle ∠2 can be named as ∠EBD because it was created by lines EB and ED.

∠WXY = 88°

∠WXZ = 4x - 3

∠ZXY = 2x + 1

∠WXY = ∠WXZ + ∠ZXY

88 = (4x - 3) + (2x + 1)

88 = 6x - 2

6x = 90

x = 15

∠HIJ = 108°

IK bisects ∠HIJ

∠HIK = 4x + 2

∠HIJ = 2∠HIK

108 = 2(4x + 2)

108 = 8x + 4

8x = 104

x = 13

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Answer:

(1) is the answer

hope it helps

Step-by-step explanation:

(1)

It's the first one. Hope this helps!!

Answer:

8

Step-by-step explanation:

Answer:

what do you need to do?

Step-by-step explanation:

what is the Question

Answer:

about =502.65

Step-by-step explanation:

Answer:

3,696

Step-by-step explanation:

7x24x22 equals 3,696

24x7=168

168x22=3,696

Answer:

the answer would be D because meadian is what in the middle

Answer:

Step-by-step explanation:

a) The sample mean is computed as the mid point of the given confidence interval. It is computed as:

\(\bar X=\frac{42.16+57.84}{2} \\\\=50\)

From standard normal tables, we have:

P( -1.96 < Z < 1.96 ) = 0.95

Therefore the margin of error here is computed as:

\(MOE=z*\frac{\sigma}{\sqrt{n} }\)

\(1.96*\frac{\sigma}{\sqrt{n} } =57.84-50\\\\1.96*\frac{\sigma}{\sqrt{25} } =57.84-50\\\\ \sigma=\frac{7.84 \times 5}{1.96} \\\\=20\)

Now for confidence interval width as 12, and above standard deviation the minimum sample size is computed as:

\(1.96 \times \frac{20}{\sqrt{n} } =\frac{12}{2} \\\\1.96 \times \frac{20}{\sqrt{n} }=6\\\\n=(1.96*\frac{20}{6} )^2\\\\=42.7\)

≅ 43

Therefore 43 is the minimum sample size required here.

b) Here for n = 25, we need to find the critical z value first. It is computed as

\(z*\frac{20}{\sqrt{25} } =6\\\\z=\frac{6 \times 5}{20} \\\\=1.5\)

We now have to find the probability now:

P( -1.5 < Z < 1.5)

= 2*P(0 < Z < 1.5)

From standard normal tables, we have:

P(Z < 1.5) = 0.9332

Therefore P( 0 < Z < 1.5) = 0.9332 - 0.5 = 0.4332

Therefore the required probability here is:

= 2*P(0 < Z < 1.5) = 2*0.4332 = 0.8664

Therefore the largest confidence interval here is given as 86.64%

Answer:

B

Step-by-step explanation:

5.7(10^-5)=0.000057

The area of the region is  rectangles

The given curves are y = x2 and y = 2 − x2. They intersect at x = 1, y = 1. See the graph below. The shaded region enclosed by the curves is the region whose area we wish to find.To find the area of the shaded region,

The left part of the region is the part bounded by the x-axis, the curve y = x2, and the line x = 1. This region is shown below. To find the area of this region, we integrate with respect to y from y = 0 to y = 1. Along the curve y = x2, the values of x are ± y1/2. So we have to integrate from x = −y1/2 to x = 1.

Thus the area of the right part of the region isThus the total area of the shaded region is Approximating rectangle The area of each approximating rectangle is given by height times width. Since we are dividing the region into two parts we

A typical rectangle is shown below. The value of x corresponding to the lower end of the rectangle is x = −y1/2 and the value of x corresponding to the upper end of the rectangle is x = 1. So the height of the rectangle is x2 and the width is Δy = 1/n. Therefore, the area of the rectangle isSince the rectangle is located below the curve, this approximation underestimates the true area of the region.

 Therefore, the area of the rectangle is Since the rectangle is located above the curve, this approximation overestimates the true area of the region. By computing the sum of the areas of all the approximating rectangles and taking the limit as n approaches infinity, we can find the exact area of the region.

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Answer:

answer is b they all add up

Step-by-step explanation:

The domain of the exponential function can take values is option (B) all real numbers is the correct answer.

Exponential function involves exponents. An exponential function is an function with exponents where the exponent (or) a part of the exponent is a variable. The population increase or decrease can be modeled as exponential function.

For the given situation,

In 1990, Jamaica's initial population,P₀ = 2,466,000

Rate of population growth,r = 1.1% = 0.011

Let x be the number of years

Then the population growth can be written as

\(P(x)=P_{0}(1+r)^{x}\) ------- (1)

Now substitute the above values,

⇒ \(P(x)=2466000(1+0.011)^{x}\)

For x=0,

⇒ \(P(0)=2466000(1+0.011)^{0}\)

⇒ \(P(0)=2466000(1)\)

⇒ \(P(0)=2466000\)

If we need to find the population growth in future years, we need to use positive values of x.

If we need to find the population growth in past years, we need to use negative values of x.

If we need to find the intermediate values, then we need to use rational numbers.

Hence we can conclude that the domain of the exponential function can take values is option (B) all real numbers is the correct answer.

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Answer:

c is correct i tested it

Step-by-step explanation:

Answer:

edge ⬇️

The median number of children is 222.

The following frequency table shows the number of children that each member of Parents' Club has:

Number of children Number of members111 333222 222333 111444 000555 111

The median is a statistical value that describes the center of a data set.

The median separates the data set into two equal parts.

Half of the observations lie above the median, and half lie below it.

The median is the midpoint value of a data set.

To determine the median, we first need to arrange the data set in order from smallest to largest.

The data is already sorted, and we can now find the median.

The median is 222 because the cumulative frequency of 222 is 333 + 222 = 555, which is the same as the frequency of the 5th item in the ordered list.

Therefore, the median number of children is 222.

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Answer:

1. 6

2. 5

3. 4

Step-by-step explanation:

For each expression, Substitute the variable for what is given in the statement.

1. 8×(3/4)=6

2. 2.5×(2)=5

3. 10/2.5=4

Answer:

2(0) - 4(-3) = 0 + 12 = 12

Yes, the point (0, -3) is a solution to the linear equation 2x - 4y = 12.

Cohen's conventions for interpreting d, this effect is small. Therefore, the correct answer is a. small.

According to Cohen's conventions for interpreting the effect size (d), the effect described in the study is considered "small." Cohen's conventions provide a general guideline for categorizing the magnitude of an effect size.

In this case, the effect size (d) is calculated to be 0.02. Cohen's conventions typically classify effect sizes as follows:

Small effect: d = 0.2

Medium effect: d = 0.5

Large effect: d = 0.8

Since the effect size of 0.02 is significantly smaller than the threshold for a small effect (0.2), it falls into the "small" category. This means that the difference in the number of words uttered per day between men and women, as reported in the study, is relatively small or negligible in practical terms.

Therefore, the correct answer is a. small.

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Answer:

It's a square; vertice f is 6 units to the right of vertice e and g is 6 units above f, and h is 6 units to the left of g. This means there are four sides of equal length, with equal angles.

do you need more than that?

Answer:

The answer is B

Answer:

17

Step-by-step explanation:

A easy way to do this is by subtracting 25 from 42 instead of adding.

42-25=17

To check it add 25 + 17 = 42

The combination of samples is 80% likely to contain no defective televisions.

A combination appears to be a statistical technique for estimating the number of potential configurations in a collection of objects where the sequence of anything like the option is immaterial. Organize the elements in every order to choose. Permutations & combinations are commonly misunderstood.

Evaluate just non-faulty TVs to identify the same amount of ways in which the picked TVs are not defective. Because there are two faulty televisions out of 16, the amount of non-faulty sets is two.

= 10 - 2

= 8

Two non-defective televisions must be picked from a pool of twelve. There are several ways to accomplish this:

= ((10 × 9 × 8 × 7 ....) ÷ ((2 × 1) × (8 × 7 × 6...))  = 8!/2!((10- 2)!) = 80.

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Answer:

4 tens

Step-by-step explanation:

3 tens would get you $30, which is $7.80 short. If you give 4 tens you are giving $40 which is 2.20 more than $37.80, which is okay as you can probably get change and it is the least amount of tens you can give to cover the cost.

Answer: The coordinates of A = (-6,-3).

Step-by-step explanation:

The coordinates of image of point (x,y) after the dilation with scale factor of k given by :-

\((x,y)\to (kx,ky)\)

Given: Scale factor = 1.5

Coordiantes of A = (-4,-2)

The coordiantes of A' after a dilation with a scale factor of 1.5 will be

\((1.5\times-4, 1.5\times-2) = (-6,-3)\)

Hence, the coordinates of A = (-6,-3).

Answer:

B. x=3

Step-by-step explanation:

3x+4y=12

9x-4y=24

Add 9x and 3x

Subtract -4y from 4y which will cancel out

Add 12 and 24

12x=36

divide both sides by 12

x=3

Answer:

Step-by-step explanation:

Pages Alana writes = m+4

to fill in the blanks add 4 to 5, 7, and 9 because of the 4 extra pages Alana writes.

That will give you: 9, 11, and 13 as your answers

SOLUTION

From the diagram in the picture, the point (2, -3) is the point for Lake.

Hence the answer is Lake

Answer:

no it is not able to be factored

Answer: b represents the variable and 42 represents the coefficent.

Step-by-step explanation:

The required  the  parts of the park expression 42b represent

the total price of the bolga basket , b represents the number of bolga basket and 42 represents the cost of each bolga basket.

A statement is a declarative sentence that is either true or false but not both. A statement is sometimes called a proposition. The key is that there must be no ambiguity. To be a statement, a sentence must be true or false, and it cannot be both.

Given:

Bolga baskets= $42

The expression 42b represents the total price buying b baskets.

According to given question we have

The given statement is

Let the number of bolga basket be b

So, the total price of the bolga basket =42b

The cost of each bolga basket is  $42

Therefore, the required  the  parts of the park expression 42b represent

the total price of the bolga basket , b represents the number of bolga basket and 42 represents the cost of each bolga basket.

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