Match the descriptive phrase with its correct symbol In this

Match the descriptive phrase with its correct symbol. In this exercise, X denotes a random variable.

Standard deviation of X

Choose the correct answer below.

A.

E(Xminusmu)

B.

p(x)

C.

Eleft parenthesis Upper X minus mu right parenthesis squared(X)2

D.

StartRoot VAR left parenthesis Upper X right parenthesis EndRootVAR(X)

Solution

D.

StartRoot VAR left parenthesis Upper X right parenthesis EndRootVAR(X)

Stadard deivation is the square root of variance i.e sd = Sqrt( Variance (x))