document.write( "Question 586040: 1. It is asserted that 65 percent of the cars approaching an individual toll both in New Jersey are equipped with an E-ZPass transponder. Find the probability that in a sample of seven cars:
\n" ); document.write( "(a) All seven will have the transponder. (Round your answer to 4 decimal places.)
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\n" ); document.write( "\n" ); document.write( "(b) At least four will have the transponder. (Round your answer to 4 decimal places.)
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\n" ); document.write( "\n" ); document.write( "(c) None will have a transponder. (Round your answer to 6 decimal places.)
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Algebra.Com's Answer #373593 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
1. It is asserted that 65 percent of the cars approaching an individual toll both in New Jersey are equipped with an E-ZPass transponder.
\n" ); document.write( "Binomial Problem with n = 7; p(have) = 0.65 ; p(not have) = 0.35
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\n" ); document.write( "\n" ); document.write( "Find the probability that in a sample of seven cars:
\n" ); document.write( "(a) All seven will have the transponder. (Round your answer to 4 decimal places.)
\n" ); document.write( "Ans: 0.65^7 = 0.0490
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\n" ); document.write( "\n" ); document.write( "Probability \r
\n" ); document.write( "\n" ); document.write( "(b) At least four will have the transponder. (Round your answer to 4 decimal places.)
\n" ); document.write( "Ans: P(4<= x <=7) = 1 - P(0<= x <=3) = 0.8002 \r
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\n" ); document.write( "\n" ); document.write( "(c) None will have a transponder. (Round your answer to 6 decimal places.)
\n" ); document.write( "Ans: P(x = 0) = 0.35*7 = 0.000064339
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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