The Probabilities and the Number of Automobiles Lined Up at a Lakeside

Multiple Choice

The probabilities and the number of automobiles lined up at a Lakeside Olds at opening time (7:30
A.m. for service are:
On a typical day, what is the standard deviation of the number of cars that Lakeside Olds can expect
To be lined up at opening?

A) 1.96
B) 2.85
C) 0.7275
D) 0.2400
E) 0.8529