d            KGS (X)                SAT(Y) A            52           49 B             49           49 C             26           17 D            28           34 E             63           52 F             44           41

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 24PFA
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1) The following data are the college entrance exam (KGS) and verbal comprehension test (SAT) scores of 20 students. For these scores

a) draw a scatter diagram.  

b) calculate the correlation coefficient.

id            KGS (X)                SAT(Y)

A            52           49

B             49           49

C             26           17

D            28           34

E             63           52

F             44           41

G            70           45

H            32           32

I              49           29

J              51           49

K             64           53

L             28           17

M           49           40

N            43           41

O            30           15

P             65           50

R             35           28

S             60           55

T             49           37

U            66           50

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