Exhibit 5-10

Multiple Choice

Exhibit 5-10.According to a study by the Centers for Disease Control and Prevention,about 33% of U.S.births are Caesarean deliveries (National Vital Statistics Report,Volume 60,Number 2,November 2011) .Suppose seven expectant mothers are randomly selected. Refer to Exhibit 5-10.The expected number of mothers who will not have a Caesarean delivery is ______.

A) 1.24
B) 2.31
C) 3.50
D) 4.69