What is the correlation coefficient r for the data set? enter your answer to the nearest hundredth in the box. r =

x y

0 8

1 7.5

2 6

2 5.5

3 5.5

3 4

4 3

5 3

6 2.5

-0.00348

Step-by-step explanation:

x          y           xy                                

0        8            0             0                      64

1        7.5         7.5           1                  56.25    

2        6          12            4                    36

2       5.5          11            4                   30.25

3       5.5          16.5        9                   30.25

3        4            12            9                     16

4       3             12           16                     9

5       3             15           25                   9

6      2.5         15            36                  6.25

Now

N = number of pairs of scores = 9

Formula :

Substitute the values.

Hence the correlation coefficient is -0.00348

from the figure we get,

the x axis shows   the months and,

the y-axis shows the number of satisfied customer.

each line or each cell in upward direction (y-axis) shows 500.

the appropriate scale for the y - axis is: -

a = 2000 customers

b = 4000 customers

c = 6000 customers

d = 8000 customers

e = 10000 customers

f = 12000 customers

g = 14000 customers

sure i'm up for it

step-by-step explanation: