Question 926197
Find the probability Pr(Z < -1.05) = normalcdf(-100,-1.05) = 0.1469 
Find the probability Pr(Z > -1.05) = normalcdf(-1.05,100) = 0.8531 
Find the probability Pr(-3.10 < Z < 2.15) = normalcdf(-3.1,2.15) = 0.9833   
Find the number b such that Pr(Z > b)= .9821 .
Find the z-value with a left tail of 1-0.9821 = 0.0179
b = invNorm(0.0179) = -2.0992
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Cheers,
Stan H.
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