Question 930098
mean = 32 million, SD = 6 million. {{{z = blue(x - 32)/blue(6)}}}     
P(38 < x < 44) = P( 1 < z < 2) = normalcdf( 1 , 2) = .1359
P(x &#8805; 23) = P( z > -9/6) = normalcdf(-9/6, 100)= .9332
P( x > 51) = P(z > 19/6) = normalcdf( 19/6, 100)= .00077
Using a TI calculator 0r similarly a Casio fx-115 ES plus