The probability distribution for the number of automobiles lined up at a Lakeside Olds dealer at opening time (7:30 AM) for service is Number Probability 1 0.15 2 0.20 3 0.50 4 0.15 On a typical day,...

The probability distribution for the number of automobiles lined up at a Lakeside Olds dealer at opening time (7:30 AM) for service is

On a typical day, how many automobiles should Lakeside Olds expect to be lined up at opening time?