The probability histogram on the following page represents the number
The probability histogram on the following page represents the number
The probability histogram on the following page represents the number of live births by a mother 50 to 54 years old who had a live birth in 2007.
(a) What is the probability that a randomly selected 50- to 54-year-old mother who had a live birth in 2007 has had her fourth live birth?
(b) What is the probability that a randomly selected 50- to 54-year-old mother who had a live birth in 2007 has had her fourth or ﬁfth live birth?
(c) What is the probability that a randomly selected 50- to 54-year-old mother who had a live birth in 2007 has had her sixth or more live birth?
(d) If a 50- to 54-year-old mother who had a live birth in 2007 is randomly selected, how many live births would you expect the mother to have had?