document.write( "Question 729623: 90% of the people surveyed believe that the speed limilt on the turnpike should increase. A random sample of 15 people were asked if they believe that the speed limit should be increased and the number who agree were recorded\r
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Algebra.Com's Answer #853167 by ikleyn(53618)\"\" \"About 
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\n" ); document.write( "90% of the people surveyed believe that the speed limilt on the turnpike should increase.
\n" ); document.write( "A random sample of 15 people were asked if they believe that the speed limit should be increased
\n" ); document.write( "and the number who agree were recorded
\n" ); document.write( "1. find the probability that exactly 7 believe that the speed limit should be increased
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\n" ); document.write( "\n" ); document.write( "It is a typical question/problem on binomial distribution probability.\r
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document.write( "The number of trials is 15, the number of successful trials is 7 \r\n" );
document.write( "and the probability of the individual success is 0.9.\r\n" );
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document.write( "For the solution, use a standard formula\r\n" );
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document.write( "    P = \"C%2815%2C7%29%2A0.9%5E7%2A%281-0.9%29%5E%2815-7%29\" = \"6435%2A0.9%5E7%2A0.1%5E8\" = 3.07784E-05.    ANSWER\r\n" );
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