22. THE FOLLOWING ARE THE SCORES OF STUDENTS RECEIVE IN QUIZZES IN MATH AND SCIENCE MATH (X): 90, 98, 83, 78, 85, 70 SCIENCE (Y): 73, 78, 72, 91, 67, 80, FIND: Σ X 42802 35767 504 461 Σ Y 42802 504 461 35767 ΣX² 42802 504 461 35767 ΣY² 461 35767 504 42802 ΣXY 42802 38583 35767 461 WHAT IS THE VALUE OF R? +0.35 -0.95 +0.95-0.35 WHAT DOES R MEANS? A. THERE IS A WEAK POSITIVE RELATIONSHIP BETWEEN THE QUIZZES IN MATH AND SCIENCE B. THERE IS A STRONG POSITIVE RELATIONSHIP BETWEEN THE QUIZZES IN MATH AND SCIENCE C. THERE IS A WEEK NEGATIVE RELATIONSHIP BETWEEN THE QUIZZES IN MATH AND SCIENCE D. THERE IS A STRONG NEGATIVE RELATIONSHIP BETWEEN THE QUIZZES IN MATH AND SCIENCE COMPUTE FOR A -102.25 0.30 -0.30 102.25 COMPUTE FOR B -0.30 102.25 0.30 -102.25 LINEAR REGRESSION EQUATION Y= -0.30X - 102.25 Y= -0.30X + 102.25 Y=0.30X + 102.25 Y=0.30X-102.25
22. THE FOLLOWING ARE THE SCORES OF STUDENTS RECEIVE IN QUIZZES IN MATH AND SCIENCE
MATH (X): 90, 98, 83, 78, 85, 70
SCIENCE (Y): 73, 78, 72, 91, 67, 80,
FIND:
Σ X
42802
35767
504
461
Σ Y
42802
504
461
35767
ΣX²
42802
504
461
35767
ΣY²
461
35767
504
42802
ΣXY
42802
38583
35767
461
WHAT IS THE VALUE OF R?
+0.35
-0.95
+0.95-0.35
WHAT DOES R MEANS?
A. THERE IS A WEAK POSITIVE RELATIONSHIP BETWEEN THE QUIZZES IN MATH AND SCIENCE
B. THERE IS A STRONG POSITIVE RELATIONSHIP BETWEEN THE QUIZZES IN MATH AND SCIENCE
C. THERE IS A WEEK NEGATIVE RELATIONSHIP BETWEEN THE QUIZZES IN MATH AND SCIENCE
D. THERE IS A STRONG NEGATIVE RELATIONSHIP BETWEEN THE QUIZZES IN MATH AND SCIENCE
COMPUTE FOR A
-102.25
0.30
-0.30
102.25
COMPUTE FOR B
-0.30
102.25
0.30
-102.25
LINEAR REGRESSION EQUATION
Y= -0.30X - 102.25
Y= -0.30X + 102.25
Y=0.30X + 102.25
Y=0.30X-102.25
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