please do this urgentlyExtracted text: 3.
The midterm grades (x) and final grades (y) of 250...

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please do this urgentlyExtracted text: 3.
The midterm grades (x) and final grades (y) of 250 students were recorded. Both grades are out
of 100. They are summarized in the following table
 XXXXXXXXXX XXXXXXXXXX
A
Compute the value of the correlation coefficient between x and y. I.e., compute r.
Find the equation of the regression line with midterm grade as independent variable (the predictor) and
the final grade as dependent variable (response).
В.
C.
The midterm grades (X) range from 5 to 99. Predict the final grade of a student who received 80 on
their midterm.

Baljit · Accepted Answer

Midtevm arade 
fintom rade a 
Give 
Numbes of studentS (N) = So 
1So6S 
962359.9,E 9o1494S 
ii 933Ss68 
a) Now 
CoY elahom Ceesft ietly) is aivem by 
S 
S S 
Sxy 
Sx 
- 5 S N Heme. 
Sa -
VN 
Nou 
Meam of ,~= o60-a6 
Mean o , 8 198y2 51.3 
Svy -5 
ST x 933S%.8 60-a6x 59.

3. The midterm grades (x) and final grades (y) of 250 students were recorded. Both grades are out of 100. They are summarized in the following table 15065 14842.5 962357.9 909494.5 933556.8 A Compute...

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