Use the Given Values of N and P to Find $\sigma = 6.66$

Multiple Choice

Use the given values of n and p to find the minimum usual value µ - 2? and the maximum usual value µ + 2?
-n = 48; p = .4

A) $\sigma = 6.66$
B) $\sigma = 3.39$
C) $\boldsymbol { \sigma } = 0.98$
D) $\boldsymbol { \sigma } = 7.51$