Which of the following simple the square root of σ square?(a) Variance(b) Standard deviation(c) Mean(d) MedianThis question was addressed to me in an internship interview.My question is from Distribution topic in chapter Distributions, Graphics & Neural Networks of R Programming

Which of the following simple the square root of σ square?(a) Varianc

1.	Which of the following simple the square root of σ square?(a) Variance(b) Standard deviation(c) Mean(d) MedianThis question was addressed to me in an internship interview.My question is from Distribution topic in chapter Distributions, Graphics & Neural Networks of R Programming
Answer» Right answer is (b) Standard deviation To explain: Standard deviation is the MEASURE of dispersion of a set of DATA from its MEAN. The standard deviation σ is simply the SQUARE ROOT of σ square.

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