Scores on a Test Have a Mean of 62 And \mathrm

Multiple Choice

Scores on a test have a mean of 62 and $\mathrm { Q } _ { 3 }$ is 84. The scores have a distribution that is approximately normal. Find the standard deviation. Round your answer to the nearest tenth.

A) 14.7
B) 32.8
C) 29.3
D) 16.5