document.write( "Question 843074: A lawyer commutes daily from his suburban home to his midtown office. On the average the trip one way takes 24 minutes, with a standard deviation of 3.8 minutes. Assume the distribution of trip time to be normally distributed.
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\n" ); document.write( "c. What is the probability that a trip will take 20 to 23 minutes? \n" ); document.write( "
Algebra.Com's Answer #507882 by ewatrrr(24785)\"\" \"About 
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document.write( "Hi,
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document.write( "mean 24min, sd = 3.8
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document.write( "Using TI Calculator
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document.write( "a. What is the probability that a trip will take at least ½ hour(30mim)?  
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document.write( "normalcdf(smaller, larger, µ, σ)= normalcdf(30, 9999, 24, 3.8).
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document.write( "Note: The 9999 is used as the larger value to be at least 5 standard deviations from the mean.
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document.write( " b. Find the probability that 2 of the next 3 trips will take at least ½ hour.
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document.write( " binompdf(n, p, x-value)=  binompdf(3, p, 2).
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document.write( " c. What is the probability that a trip will take 20 to 23 minutes?
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document.write( "normalcdf(smaller, larger, µ, σ)= normalcdf(20, 23, 24,3.8). \n" );
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