Properties of Probability Distributions Questions & Answers

Properties of Probability Distributions Questions & Answers A family has two children. If B represents a boy and G represents a girl, the set of outcomes for the possible genders of the children is S = {BB, BG, GB, GG}, with the oldest child listed first in each pair. Let X represent the number of times G occurs. Which of the following is the probability distribution, PX(x)? - ANSWER: 1 A project is graded on a scale of 1 to 5. If the random variable, X, is the project grade, what is the mean of the probability distribution below? - ANSWER: 3 A spinner contains four sections: red, blue, green, and yellow. Joaquin spins the spinner twice. The set of outcomes is given as S = {RB, RG, RY, RR, BR, BG, BY, BB, GR, GB, GY, GG, YR, YB, YG, YY}. If the random variable is "yellow (Y)," which of the following is the correct probability distribution? - ANSWER: 1.....................................................