Chapter 8.2, Problem 9E

EXPECTED NUMBER OF AUTO ACCIDENTS The numbers of accidents that occur at a certain intersection known as Five Corners on a Friday afternoon between the hours of 3 P.M. and 6 P.M., along with the corresponding probabilities, are shown in the following table. Find the expected number of accidents during the period in question.

Accidents	$0$	$1$	$2$	$3$	$4$
Probability	$.935$	$.030$	$.020$	$.010$	$.005$