STATISTICAL TECHNIQUES AND TOOLS
MEASURES OF CENTER AND SPREAD
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Given the data:21, 31, 26, 24, 28, 26This is a 3 part question:Part-2:Find the standard deviation of 21, 31, 26, 24, 28, 26.
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S.D. ≈ 9.67
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S.D. ≈ 26
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S.D. ≈ 3.1
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S.D. ≈ 10
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Explanation:
Detailed explanation-1: -X = ∑ f X ∑ f = 3880 200 = 19 . 4 Standard Deviation = ∑ f x 2 ∑ f = 20078 200 = 10 . 02 Coefficient of Standard Deviation = X = 10 .
Detailed explanation-2: -Given data: 10, 28, 13, 18, 29, 30, 22, 23, 25, 32. Hence, ∑xi = 10 + 28 + 13 + 18 + 29 + 30 + 22 + 23 + 25 + 32 = 230. Hence, Mean, = 230/10 = 23. Hence, the standard deviation is 7.
There is 1 question to complete.