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.     Question content area bottom Part 1 ​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?   enter your response here ​(Type an integer or a​ decimal.) Part 2 ​ 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?   enter your response here ​(Type an integer or a​ decimal.) Part 3 ​ 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?   enter your response here ​(Type an integer or a​ decimal.)   ​ 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?   enter your response here ​(Round to one decimal place as​ needed.)

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