document.write( "Question 469323: USA Today reports that about 25% of all prison parolees become repeat offenders. Alice is a social worker whose job is to counsel people on parole. Let us say success means a person does not become a repeat offender. Alice has been given a group of four parolees.
\n" ); document.write( "(a) Find the probability P(r) of r successes ranging from 0 to 4. (Round your answers to three decimal places.) P(0) = 1
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\n" ); document.write( " (b) Make a histogram for the probability distribution of part (a).
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Algebra.Com's Answer #322001 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
USA Today reports that about 25% of all prison parolees become repeat offenders. Alice is a social worker whose job is to counsel people on parole. Let us say success means a person does not become a repeat offender. Alice has been given a group of four parolees.
\n" ); document.write( "(a) Find the probability P(r) of r successes ranging from 0 to 4. (Round your answers to three decimal places.)
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\n" ); document.write( "Note: This is a binomial problem with n = 4 and p = 0.25
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\n" ); document.write( "For each of the following P(r) = (4Cr)(0.25)^r*(0.75)^(4-r)
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\n" ); document.write( "Example:
\n" ); document.write( "P(0) = (4C0)(0.25)^0*(0.75)^4 = 1*1*0.3164 = 0.3164
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\n" ); document.write( "etc.
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\n" ); document.write( "P(1) =
\n" ); document.write( "P(2) =
\n" ); document.write( "P(3) =
\n" ); document.write( "P(4) =
\n" ); document.write( "(b) Make a histogram for the probability distribution of part (a).
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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