document.write( "Question 984050: A sleeping pill is effective for 75% of the population. If 160 patients are given this sleeping pill then what is the probability or approximate probability that 125 patients or more will sleep better?\r
\n" ); document.write( "\n" ); document.write( "I want to determine the binomial probability of exactly x successes in n independent trials, when the probability of exactly one success in one trial is p. Here n = 160 and p=.75\r
\n" ); document.write( "\n" ); document.write( "We want to find the success of 125 or more, so that would be patients 125 - 160. My difficulty is writing this \"shorthand.\" I don't want to have to write out 35 equations if I don't have to...
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Algebra.Com's Answer #604840 by MathTherapy(10555)\"\" \"About 
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A sleeping pill is effective for 75% of the population. If 160 patients are given this sleeping pill then what is the probability or approximate probability that 125 patients or more will sleep better?\r
\n" ); document.write( "\n" ); document.write( "I want to determine the binomial probability of exactly x successes in n independent trials, when the probability of exactly one success in one trial is p. Here n = 160 and p=.75\r
\n" ); document.write( "\n" ); document.write( "We want to find the success of 125 or more, so that would be patients 125 - 160. My difficulty is writing this \"shorthand.\" I don't want to have to write out 35 equations if I don't have to...
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Excel:
\n" ); document.write( "BINOMDIST(124,160,.75,1)
\n" ); document.write( "This indicates the CUMULATIVE probability of 124, or less, or 0 - 124, which should give you: .79291422
\n" ); document.write( "You then subtract this CUMULATIVE probability from 1 to get the CUMULATIVE probability of 125 and more, or 125 - 160
\n" ); document.write( "Final result: \"1+-+.79291422\" -------> \"highlight_green%28.20708578%29\"
\n" ); document.write( "You can also do this calc. on the TI-83/84 calculator. \n" ); document.write( "
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