Question

A random group of 12 high school juniors were asked to estimate the average number of
hours they study each week. The following give these hours along with the student’s grade
point average. (where, x= sum of last two digits of your ID as for example if the last two
digits of your ID is 23 than x=2+3=5)

Hours GPA
6+x 2.8
14+x 3.2
3+x 3.1
22+x 3.6
11+x 3.3
5+x 2.7
18+x 3.1
24+x 3.8
15+x 3.0
17+x 3.9
4+x 3.4
16+x 3.9

Draw the scatter diagram and find the sample correlation coefficient between hours reported
and GPA. Also fit a linear curve to these data and determine the goodness of fit.

Answer 1

Answer:

(a-b)2 this is the bad formula bro