A sales rep for a national clothing company makes 4 calls per day.Based on historical records,the following probability distribution describes the number of successful calls each day: The expected number of successful sales calls per day is:
A)2.00
B)1.15
C)1.90
D)2.50

Question

A sales rep for a national clothing company makes 4 calls per day.Based on historical records,the following probability distribution describes the number of successful calls each day:  The expected number of successful sales calls per day is:
A)2.00 
B)1.15 
C)1.90 
D)2.50

Quizplus · Accepted Answer

To find the expected number of successful sales calls per day, we need to multiply each possible outcome by its probability, and then sum up the products. 
Expected value = (0 x 0.2) + (1 x 0.35) + (2 x 0.3) + (3 x 0.1) + (4 x 0.05) 
Expected value = 1.9 
Therefore, the expected number of successful sales calls per day is 1.90. The best choice is C).

A Sales Rep for a National Clothing Company Makes 4