IOP 2601 MAY JUNE 2019 SUGGESTED SOLUTION
SECTION 1
1. FALSE
2. INDEPENDENT
3. DEPENDENT
4. TRUE
5. 8-5 =3
6. 138
7. 178
8. FALSE
9. 14.8
10. TRUE
11. TRUE
12. 0.95² X 100 = 90.25%
13. TRUE
14. = 0.2
15. = 0.06
16. (0.2 x 0.06) + ( ) = 0.024
17. FALSE
18. FALSE
19. NEGATIVE
20. NULL
1
TUTOR: ADDIE
CONTACT 062 914 2414
, SECTION 2
QUESTION 1
(a) r = 0.91,strong positive correlation/relationship
(b) Participation in support programs will lead to good marks in the examination
(c) common variance = r² x 100
= 0.91² X 100 = 82.81%
(d) a = Y – bX
= 2.93 – 0.81(3)
= 0.5
(e) Y = bX + a
For x =1
= 0.81(1) + 0.5
= 1.31
=1
For x =9
= 0.81(9) + 0.5
= 7.79
=8
2
TUTOR: ADDIE
CONTACT 062 914 2414
SECTION 1
1. FALSE
2. INDEPENDENT
3. DEPENDENT
4. TRUE
5. 8-5 =3
6. 138
7. 178
8. FALSE
9. 14.8
10. TRUE
11. TRUE
12. 0.95² X 100 = 90.25%
13. TRUE
14. = 0.2
15. = 0.06
16. (0.2 x 0.06) + ( ) = 0.024
17. FALSE
18. FALSE
19. NEGATIVE
20. NULL
1
TUTOR: ADDIE
CONTACT 062 914 2414
, SECTION 2
QUESTION 1
(a) r = 0.91,strong positive correlation/relationship
(b) Participation in support programs will lead to good marks in the examination
(c) common variance = r² x 100
= 0.91² X 100 = 82.81%
(d) a = Y – bX
= 2.93 – 0.81(3)
= 0.5
(e) Y = bX + a
For x =1
= 0.81(1) + 0.5
= 1.31
=1
For x =9
= 0.81(9) + 0.5
= 7.79
=8
2
TUTOR: ADDIE
CONTACT 062 914 2414
