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The following data represent load for sample of 60 mutual funds (in cents).

41

76

10

53

36

86

42

81

104

77

44

25

68

90

94

90

125

25

32

13

87

121

69

60

72

106

77

25

39

80

102

68

46

55

41

87

60

74

71

97

89

47

82

28

104

103

40

13

77

72

98

74

28

82

107

110

44

10

72

27

Convert 60 sample observations above to grouped data by means of frequency distribution. Let the first class be 10 < 30 and keep the class width at 20. Disregard the 2k Rule for finding the number of classes. From the frequency distribution, evaluate the sample mean and variance, and standard deviation using the grouped data formulas. Make the histogram, frequency polygon, and Ogive. Remember to find out the less than cumulative frequency distribution before you can produce the Ogive. Then employ the ogive to estimate the median and first and third quartiles. Also use it to answer the following problem: What percent of 60 mutual fund loads are less than 75.

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M916962

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