document.write( "Question 929946: 1. If the probability of tossing a coin and getting head is 0.5, find the probability that in 100 tosses, 65 or more will be heads. Use the normal distribution to approximate the binomial distribution.
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\n" ); document.write( " 0.0013
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\n" ); document.write( " 0.9981
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\n" ); document.write( " 0.0019
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\n" ); document.write( " 0.9987
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\n" ); document.write( " None of the above
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Algebra.Com's Answer #564622 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!
z =\"blue+%28x+-+mu%29%2Fsqrt%28blue%28p%281-p%29%2Fn%29%29\" =\"blue+%28.65-.50%29%2Fsqrt%28blue%28.5%2A.5%2F100%29%29\" = .15/.05 = 3
\n" ); document.write( "P(z > 3) = normalcdf(3,100) = .0013
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