Each month, a Pakistan household generates an average of 19 pounds of garbage. Assuming the variable is normally distributed and the standard deviation is 5 pounds. If a household is selected at...

Each month, a Pakistan household generates an average of 19 pounds of garbage. Assuming the variable is normally distributed and the standard deviation is 5 pounds. If a household is selected at random, find the probability of its generating:

1. Between 18 and 21 pounds per month.


2. More than 25.6 pounds per month.