document.write( "Question 926197: Use the standard normal distribution table in the book to solve the following problems. Z here represents a random variable that is standard normally distributed. Round all answers to four places after the decimal point.\r
\n" ); document.write( "\n" ); document.write( "Find the probability Pr(Z < -1.05) .\r
\n" ); document.write( "\n" ); document.write( "Find the probability Pr(Z > -1.05) .\r
\n" ); document.write( "\n" ); document.write( "Find the probability Pr(-3.10 < Z < 2.15) .\r
\n" ); document.write( "\n" ); document.write( "Find the number b such that Pr(Z > b)= .9821 .
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Algebra.Com's Answer #562078 by stanbon(75887)\"\" \"About 
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Find the probability Pr(Z < -1.05) = normalcdf(-100,-1.05) = 0.1469
\n" ); document.write( "Find the probability Pr(Z > -1.05) = normalcdf(-1.05,100) = 0.8531
\n" ); document.write( "Find the probability Pr(-3.10 < Z < 2.15) = normalcdf(-3.1,2.15) = 0.9833
\n" ); document.write( "Find the number b such that Pr(Z > b)= .9821 .
\n" ); document.write( "Find the z-value with a left tail of 1-0.9821 = 0.0179
\n" ); document.write( "b = invNorm(0.0179) = -2.0992
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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