Question

In: Statistics and Probability

Each of the following three datasets represent IQ Scores for three random samples of different sizes....

Sample Size 30 106 92 98 103 100 102 98 124 83 70 108 121 102 87 121 107 97 114 140 93 130 72 81 90 103 97 89 98 88 103

Solutions

Expert Solution

Given Sample Size = n = 30

MEAN:

MEDIAN:

To Calculate the Medain; first we have to arrange the given observations either in Ascending Order (Or) in Descending Order.

STANDARD DEVIATION (S.D):

CALCULATIONS:

*************************************************************

MEDIAN:

Arrangement of Observations in Ascending Order:

100

102

103

106

107

108

114

121

124

130

140

Therefore

**********************************************************************

STANDARD DEVIATION:

	x
	106	11236
	92	8464
	98	9604
	103	10609
	100	10000
	102	10404
	98	9604
	124	15376
	83	6889
	70	4900
	108	11664
	121	14641
	102	10404
	87	7569
	121	14641
	107	11449
	97	9409
	114	12996
	140	19600
	93	8649
	130	16900
	72	5184
	81	6561
	90	8100
	103	10609
	97	9409
	89	7921
	98	9604
	88	7744
	103	10609
TOTAL	3017	310749

orchestra answered 1 year ago

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