The graph of the discrete probability to the right represents the number A oflive births by a mother 40 to 45 years old who had a live birth in \"-39 em 53 r.) 2015. Complete parts [a] through {d} below. 0 m 0.1 0.10 Probability 00 0.00 is u " ber of L we Sin-15 [a] What is the probability that a randomly selected 40 to 45year-old mother who had a live birth in 2015 has had her fourth live birth in that year? :| {Type an integer or a decimal.) [b] What is the probability that a randomly selected 40 to 45-year-old mother who had a live birth in 2015 has had her fourth or fifth live biIth in that year? :| {Type an integer or a decimal] [c] What is the probability that a randomly selected 40 to 45year-old mother who had a live birth in 2015 has had her sixth or more live birth in that year? :| {Type an integer or a decimal.) [d] If a 40 to 45-year-old mother who had a live birth in 2015 is randomly selected. how many live births would you expect the mother to have had? :| {Round to one decimal place as needed.)