Weights in kilograms of boys at the start of 1st grade are approximately normal with mean 25, standard deviation 5. Use the 68-95-99.7 Rule to estimate the following weights:
a. The probability is 0.002 that a boy at the start of 1st grade is less than what weight?
b. The probability is 0.12 that a boy at the start of 1st grade is more than what weight?