1. The weights of adult male beagles are normally distributed with a mean of 25 pounds and a standard deviation of 3 pounds. A beagle is randomly selected.
a. Find the probability that the beagle's weight is less than 23 pounds.
b. Find the probability that beagle's weight is between 23 and 25 pounds.
c. Find the probability that the beagle's weight is more than 27 pounds.