document.write( "Question 1197517: Questions 24-25
\n" ); document.write( "The scores of a standardized IQ test are normally distributed with a mean score of 100 and a standard deviation of 15.\r
\n" ); document.write( "\n" ); document.write( "Question 24
\n" ); document.write( "Find the probability that a randomly selected person has an IQ score higher than 105.\r
\n" ); document.write( "\n" ); document.write( "Question options:\r
\n" ); document.write( "\n" ); document.write( "0.9522\r
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\n" ); document.write( "\n" ); document.write( "0.3694\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "-1.15\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "0.6306\r
\n" ); document.write( "\n" ); document.write( "Question 25
\n" ); document.write( "A random sample of 55 people is selected from this population. What is the probability that the mean IQ score of the sample is greater than 105?\r
\n" ); document.write( "\n" ); document.write( "Question options:\r
\n" ); document.write( "\n" ); document.write( "0.0067\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "0.3694\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "0.6306\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "0.9933\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

Algebra.Com's Answer #830816 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

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document.write( "Hi\r\n" );
document.write( "Question 24\r\n" );
document.write( " ,  z = 5/15\r\n" );
document.write( "P(x>105) = 1 - P(x ≤ 105) = 1 - P( z ≤ 1/3) = .3694\r\n" );
document.write( "  \r\n" );
document.write( "Question 25\r\n" );
document.write( " \r\n" );
document.write( " P(sample mean > 105) = .0067  \r\n" );
document.write( "Wish You the Best in your Studies.\r\n" );
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