SOLUTION: Suppose that 50,000 married adults in the United States were randomly surveyed as to the number of children they have. Let X = the number of children married people have. The res

Question 1071058: Suppose that 50,000 married adults in the United States were randomly surveyed as to the number of children they have. Let X = the number of children married people have. The results of the survey are compiled and are used as theoretical probabilities. NOTE: The probability that a married couple had 7 or more children was so small, it was not included as part of the probability distribution.
X 0 1 2 3 4 5 6
P(x) 0.10 0.20 0.30 0.10 0.05 0.05

a. Find the probability that a married adult has three children.

b. Find the probability that a married adult has more than three children.

c. Find the expected value of this probability distribution.

d. Find the standard deviation of this probability distribution.

Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
You have 7 X values but only 6 P(X) values.
Please correct and repost.

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