The amount of moisture content (in kilograms) in a 25-kilogram wheel of cheese is distributed normal (9,0.9)
a. What is the probability that the moisture content of a wheel (i)exceeds 10 kilograms? (ii) is less than 8.5 kilograms? (iii) Differs from the mean by more than .45 kilograms?
b. 99% of wheels contains less than what weight of moisture?