document.write( "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.\r
\n" ); document.write( "\n" ); document.write( "X 0 1 2 3 4 5 6
\n" ); document.write( "P(x) 0.10 0.20 0.30 0.10 0.05 0.05\r
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\n" ); document.write( "\n" ); document.write( "a. Find the probability that a married adult has three children.
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\n" ); document.write( "b. Find the probability that a married adult has more than three children.
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\n" ); document.write( "c. Find the expected value of this probability distribution.
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\n" ); document.write( "d. Find the standard deviation of this probability distribution.
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Algebra.Com's Answer #686014 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
You have 7 X values but only 6 P(X) values.
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