Of All Individual Tax Returns,37% Include Errors Made by the Taxpayer.If

Multiple Choice

Of all individual tax returns,37% include errors made by the taxpayer.If tax auditors are assigned randomly selected returns in batches of 12,find the mean and standard deviation for the number of erroneous returns per batch.

A) $\mu$ = 2.80, $\sigma$ = 1.67
B) $\mu$ = 3.70, $\sigma$ = 1.67
C) $\mu$ = 4.44, $\sigma$ = 1.67
D) $\mu$ = 4.44, $\sigma$ = 2.80
E) $\mu$ = 7.56, $\sigma$ = 2.80