pls help with hw question

The graph of the discrete probability to the right represents the number of live births by a mother 49 to 0.30- 0.272 0.25- 0.235 52 years old who had a live birth in 2015. Complete O parts (a) through (d) below. 0.20- 0.169 Probability 0.15- 0.114 0.102 its 0.10- 0.056 0.05- 0.021 0 031 0.00- - CO Number of Live Births . . .. . (a) What is the probability that a randomly selected 49- to 52-year-old mother who had a live birth in 2015 has had her fourth live birth in that year? rary (Type an integer or a decimal.) (b) What is the probability that a randomly selected 49- to 52-year-old mother who had a live birth in 2015 has had her fourth or fifth live birth in that year? s (Type an integer or a decimal.) (c) What is the probability that a randomly selected 49- to 52-year-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 49- to 52-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