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Question
Find Skp for the following set of observations.
17, 17, 21, 14, 15, 20, 19, 16, 13, 17, 18
Solution
`sum"x"_"i"` = 17 + 17 + 21 + 14 + 15 + 20 + 19 + 16 + 13 + 17 + 18 = 187
Here, n = 11
Mean = `(sum"x"_"i")/"n"`
= `(187)/(11)`
= 17
Mode = Observation that occurs most frequently in the data
= 17
Skp = `("Mean"-"Mode")/"S.D."`
= `(17-17)/"S.D."`
= `0/"S.D."`
= 0
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