The Results of a Recent Poll on the Preference of Teenagers

Multiple Choice

The results of a recent poll on the preference of teenagers regarding the types of music they listen to are shown below. $\begin{array}{lll}\text { Music Type } & \text { Teenagers Surveyed } & \text { Teenagers Favoring } \\&&\text { Phis Typ e } \\\text { Pop } & 800 & 384 \\\text { Rap } & 900 & 450\end{array}$ The point estimate of the difference between the two population proportions is

A) -.02.
B) .048.
C) .52.
D) -.5.