1. Math
  2. Statistics And Probability
  3. student hours marks 1 54 29 2 52 23 3 51 21 4 51 23 5 56 28 6 50 21 7 53 30 8 60 24 9 56 28 10 54 27 11 50 27 12 58 30 13 52 28 14 55 27 15 53 24 16 72 35 17 65 34 18 74 33 19 75 35 20 72 35 21 63 30 22 66 33 23 63 30 24 72 34 25 65 30 26 74 30 27 65 34 28 70 34 29 62 30 30 75 32 andnbspandnbsp1andnbsp graphically present and discuss the relationship between the marks...

Question: student hours marks 1 54 29 2 52 23 3 51 21 4 51 23 5 56 28 6 50 21 7 53 30 8 60 24 9 56 28 10 54 27 11 50 27 12 58 30 13 52 28 14 55 27 15 53 24 16 72 35 17 65 34 18 74 33 19 75 35 20 72 35 21 63 30 22 66 33 23 63 30 24 72 34 25 65 30 26 74 30 27 65 34 28 70 34 29 62 30 30 75 32 andnbspandnbsp1andnbsp graphically present and discuss the relationship between the marks...

Question details

Student

Hours

Marks

1

54

29

2

52

23

3

51

21

4

51

23

5

56

28

6

50

21

7

53

30

8

60

24

9

56

28

10

54

27

11

50

27

12

58

30

13

52

28

14

55

27

15

53

24

16

72

35

17

65

34

18

74

33

19

75

35

20

72

35

21

63

30

22

66

33

23

63

30

24

72

34

25

65

30

26

74

30

27

65

34

28

70

34

29

62

30

30

75

32

 

 

1.  Graphically present and discuss the relationship between the marks and the hours spent by students.

 

2. Estimate the relationship between the marks and the hours spent using the ordinary least square method. Demonstrate and explain calculations.

 

3. Discuss the direction of relationship and its strength, supporting this with visual demonstration and measure of correlation.

 

4. What is the predicted marks if a student spends 23 hours per week? Demonstrate your calculations.

 

5. How much of the variation on marks for these 30 students is explained by the hours spent? Provide explanation and discussion with the answer.

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