The Marketing Department of an Electronics Manufacturer Has Done Research

Multiple Choice

The marketing department of an electronics manufacturer has done research on the number of television sets owned by families in a large town. The probability model for the number of sets owned by a randomly chosen family is given below. What is the mean number of sets per family? $$\begin{array} { l c c c c } \text { Number of } & 0 & 1 & 2 & 3 \\\text { sets } & & & & \\\text { Probability } & 0.04 & 0.34 & 0.47 & 0.15\end{array}$$

A) 0.96
B) 1.5
C) 1.77
D) 1.73