The graph of the discrete probability to the right represents the number of live births by a mother 43 to 47 years old who had a live birth in 2015. Complete parts (a) through (d) below. Probability Number of Live Births (a) What is the probability that a randomly selected 43- to 47-year-old mother who had a live birth in 2015 has had her fourth live birth in that year? .112 (Type an integer or a decimal.) (b) What is the probability that a randomly selected 43- to 47-year-old mother who had a live birth in 2015 has had her fourth or fifth live birth in that year? .214 (Type an integer or a decimal.) (c) What is the probability that a randomly selected 43- to 47-year-old mother who had a live birth in 2015 has had her sixth or more live birth in that year? .13 (Type an integer or a decimal.) (d) If a 43- to 47-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.)