document.write( "Question 1178332: The probability that a package is delivered on time is 0.97. If 500 randomly selected packages are delivered from this population, what are the mean and standard deviation for the on-time packages? \n" ); document.write( "

Algebra.Com's Answer #807546 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi\r\n" );
document.write( "The probability that a package is delivered on time is 0.97. \r\n" );
document.write( "n = 500\r\n" );
document.write( "mean = .97*500 = 485\r\n" );
document.write( "variance = (.97*500)(.03) = 14.55\r\n" );
document.write( "sd = √variance = 3.8144\r\n" );
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