In a series of 20 observations , 10 observations are each equal to k a – InterviewSolution

1.	In a series of 20 observations , 10 observations are each equal to k and each of the remaining half is equal to -k. If the standard deviation of the observations is 2, then write value of k.
Answer» In a series of 20 observations , 10 observations are each equal to k and each of the remaining half is equal to -k. If the standard deviation of the observations is 2, then write value of k.

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