The president of Blitz Sales Enterprises sells kitchen products through cable television infomercials. He gathered data from the last 15 weeks of sales to determine the relationship between sales and the number of infomercials. Infomercials Sales
20 3.2
15 2.6
25 3.4
10 1.8
18 2.2
18 2.4
15 2.4
12 1.5
22 2.5
15 2.4
25 3
16 2.7
12 2
20 2.6
25 2.8

Required:
a. Determine the regression equation. Are the sales predictable from the number of commercials?
b. Determine the residuals and plot a histogram. Does the normality assumption seem reasonable?

a. is correct

the answer is a beach is the best place to be

the answer would be d.

step-by-step explanation:

move all variables to the left side and all constants to the right side

(x−3)^2+(y−1)^2=16

this is the form of a circle. use this form to determine the center and radius of the circle.

( x − h ) 2 + ( y − k ) 2 = r 2

match the values in this circle to those of the standard form. the variable   r   represents the radius of the circle,   h   represents the x-offset from the origin, and   k   represents the y-offset from origin.

r = 4

h = 3

k = 1

the center of the circle is found at   ( h , k ) .

center:   ( 3 , 1 )

these values represent the important values for graphing and analyzing a circle.

center:   ( 3 , 1 ).

radius:   4

it's undefined because anything multiplied by 0 is 0. that said, 7 days is 168 hours