document.write( "Question 1197272: The scores on an exam follow a normal distribution with mean 79 and standard deviation 6.5. What is the approximate probability that a randomly selected exam taker had a score below 85.5? Give your answer as a decimal with two digits after the decimal.
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Algebra.Com's Answer #830488 by ewatrrr(24785) You can put this solution on YOUR website! µ = 79 and σ =6.5 \n" ); document.write( "P(x < 85.5) ? \n" ); document.write( "Using TI or similarly an inexpensive calculator like an Casio fx-115 ES plus \n" ); document.write( "P(x < 85.5) = normalcdf(smaller, larger, µ, σ) = normalcdf(-9999, 85.5, 79, 6.5 ) = .84 \n" ); document.write( "-9999 a place holder for the 'smaller number. \n" ); document.write( " |