Use the formula (zy)i<span> = (y</span>i<span> – ȳ) / s </span>y<span> and calculate a standardized value for each y</span>i<span>. Add the products from the last step together. Divide the sum from the previous step by n – 1, where n is the total number of points in our set of paired data. The result of all of this is the correlation coefficient </span>r<span>.</span>
The variable which is a categorical variable among the answer choices as in the task content is; Population of the state.
<h3>What is the categorical variable among the answer choices?</h3>
Categorical variables represent types of data which may be divided into groups. Instances of categorical variables include but are not limited to race, sex, age group, and gender.
It therefore follows from the traditional definition of categorical variables that the answer choice which represents a categorical variable is; Population of the state.
Read more on categorical variables;
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P = 2(L + W)
L = 4/3W
P = 2(4/3W + W) <=== part 1 is D
when P = 28
28 = 2(4/3W + W)
28/2 = 4/3W + 3/3W
14 = 7/3W
14 / (7/3) = W
14 * 3/7 = W
42/7 = W
6 = W....width is 6 inches
L = 4/3W
L = 4/3(6)
L = 24/3
L = 8....length is 8 inches
A = L * W
A = 8 * 6
A = 48 in^2 <==== part 2
Answer:
positive
Step-by-step explanation:
A positive slope means the value on the line increases going from left to right.
A negative slope means to value decreases from left to right.
A slope of zero means the value does not change at all, just a horizontal line.
An undefined slope is a vertical line.
Answer:
Plot a point at the y-intercept.
In your case, you will need to plot 2 (y-intercept) on the graph first.
