# Which of the following is a discrete random variable?Gender of a Holland Lop rabbit.Number of baby

Which of the following is a discrete random variable?Gender of a Holland Lop rabbit.Number of baby bunnies in a Holland Lop doeâ€™s nest.Weight of a Holland Lop baby bunny.Question 2Select one answer.10 pointsA couple plans to have no more than three children, and they will keep having children until they have a girl. So, if their first child is a girl, they will stop and have only one child. However, if their first child is a boy, they will try again and have a second child.As it turns out, the probability of having a boy is slightly greater than having a girl. Here is the probability distribution for the number of boys the couple could have.Boys0 boys1 boy2 boys3 boysProbability0.4900.2500.1270.133What is the expected number of boys the couple will have? (Recall: the expected value is the mean).0.9031.50.228Question 3Select one answer.10 pointsWhen filling out the 2000 Census, people could choose one of four options to describe their marital status. Data from the 2000 Census were used to compute the following probabilities.Suppose we randomly select an adult in the United States. Is it more likely that the person is divorced, or that the person is married?It is more likely that someone is married.It is more likely that someone is divorced.These events are equally likely.Question 4Select one answer.10 pointsConsider the probability distribution of X, where X is the number of times a college graduate changed majors.X012345678P(X)0.1350.2710.2710.1800.0900.0360.0120.0030.002We collect a random sample of 1000 college graduates. Based on the probability distribution, which result would be surprising?130 students in the sample never changed majors.280 students in the sample changed majors once.400 students in the sample changed majors twice.

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