Question 1050442
a mean of 6000 kilograms per square centimeter and a standard deviation of 100
a) P = normalcdf(-9999, 6252, 6000, 100)
b) P = normalcdf(5800, 5890, 6000, 100) 
In general:
TI syntax is normalcdf(smaller, larger, µ, σ).
Recommend Using stattrek.com to check  Results
until You are familiar with Using Your Calculator.
One could also Use Your Casio fx-115 ES plus 0r fx-991 ES plus 
ON, Mode(scroll down) , 3: DIST (choose type of function desired)