5. A researcher surveyed the households in a remote area. The random variable X represents the number of senior high school graduates in the households. The probability distribution X is shown below. 2 0.30 3 P(X) 0.02 0.18 0.40 0.10 a. What is the probability that a randomly selected senior high school graduates in the households is more than one? b. What is the probability that a randomly selected senior high school graduates in the households is less than three? c. What is the probability that a randomly selected senior high school graduates in the households is at least one?

The accompanying table describes results from groups of 8 births from 8 different sets of parents. The random variable x represents the number of girls among 8 children. Complete parts (a) through (d) below. E Click the icon to view the table, a. Find the probability of getting exactly 1 girl in 8 births. (Type an integer or a decimal. Do not round.) Probability distribution for x b. Find the probability of getting 1 or fewer girls in 8 births. Number of Girls x (Type an integer or a decimal. Do not round.) P(x) 0.002 0.019 0.119 c. Which probability is relevant for determining whether 1 is a significantly low number of girls in 8 births: the result from part (a) or part (b)? 1 O A. Since the probability of getting more than 1 girl is the complement of the result from part (b), this is the relevant probability. 3 0.189 O B. Since the probability of getting 1 girl is the result from part (a), this is the relevant probability. 0.342 5 0.189 OC. Since the probability of getting 0 girls is…

Show the probability distribution of the following using a chart and ahistogram:  20 out of 30 people at a party arenon-smokers. The random variable isthe number of smokers in a selection of4 partier

A small inn has 4 rooms.  Let X represent the number of rooms that are rented out on any given Saturday. The following table describes the probability distribution of X.     What is the mean of the random variable X?   μX =