To find out the location and dispersion measures.
Consider the following population:
71

89

65

97

46

52

99

41

62

88

73

50

91

71

52

86

92

60

70

91

73

98

56

80

70

63

55

61

40

95

a) Find out the mean and variance.
Mean

71.23333

Sample Variance

326.392

b) Conclude the percentage of data values that fall in each of the following intervals: x + 2s, x + 3s, x + 4s.
Evaluate these with the percentages specified by Tchebysheff's Theorem.