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QUESTION 1 [25) 1. Consider the distribution of the number of scores made by UNA

ID: 3060948 • Letter: Q

Question

QUESTION 1 [25) 1. Consider the distribution of the number of scores made by UNAM net ball team in the 16 netball league matches of the last season. 63 74 42 65 51 54 36 56 102 57 62 64 76 67 79 61 81 77 59 38 84 68 71 9471 86 106 75 91 55 48 82 83 54 79 62 68 58 41 47 a) Using the class width of 5; determine the Frequency, Relative frequency and Percent relative frequency b) Determine the following Cumulative Frequency, Cumulative Relative frequency and Cumulative Percent relative frequency c What proportion of the score is less than 60? d) What proportion of the score is more than 70? ej Develop a stem and leaf display for the distribution

Explanation / Answer

Result:

a). and b).

cumulative

lower

upper

frequency

Relative Frequency

percent

frequency

Relative Frequency

percent

36

40

2

0.05

5.0

2

0.05

5.0

41

45

2

0.05

5.0

4

0.1

10.0

46

50

2

0.05

5.0

6

0.15

15.0

51

55

4

0.1

10.0

10

0.25

25.0

56

60

4

0.1

10.0

14

0.35

35.0

61

65

6

0.15

15.0

20

0.5

50.0

66

70

3

0.075

7.5

23

0.575

57.5

71

75

4

0.1

10.0

27

0.675

67.5

76

80

4

0.1

10.0

31

0.775

77.5

81

85

4

0.1

10.0

35

0.875

87.5

86

90

1

0.025

2.5

36

0.9

90.0

91

95

2

0.05

5.0

38

0.95

95.0

96

100

0

0

0.0

38

0.95

95.0

101

105

1

0.025

2.5

39

0.975

97.5

106

110

1

0.025

2.5

40

1

100.0

40

1.0

100.0

c. proportion less than 60 is 14/40 =0.35

d. proportion more than 70 is 17/40 =0.425

e).

Stem and Leaf plot for

# 1

stem unit =

10

leaf unit =

1

Frequency

Stem

Leaf

2

3

6 8

4

4

1 2 7 8

8

5

1 4 4 5 6 7 8 9

9

6

1 2 2 3 4 5 7 8 8

8

7

1 1 4 5 6 7 9 9

5

8

1 2 3 4 6

2

9

1 4

2

10

2 6

40

cumulative

lower

upper

frequency

Relative Frequency

percent

frequency

Relative Frequency

percent

36

40

2

0.05

5.0

2

0.05

5.0

41

45

2

0.05

5.0

4

0.1

10.0

46

50

2

0.05

5.0

6

0.15

15.0

51

55

4

0.1

10.0

10

0.25

25.0

56

60

4

0.1

10.0

14

0.35

35.0

61

65

6

0.15

15.0

20

0.5

50.0

66

70

3

0.075

7.5

23

0.575

57.5

71

75

4

0.1

10.0

27

0.675

67.5

76

80

4

0.1

10.0

31

0.775

77.5

81

85

4

0.1

10.0

35

0.875

87.5

86

90

1

0.025

2.5

36

0.9

90.0

91

95

2

0.05

5.0

38

0.95

95.0

96

100

0

0

0.0

38

0.95

95.0

101

105

1

0.025

2.5

39

0.975

97.5

106

110

1

0.025

2.5

40

1

100.0

40

1.0

100.0

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