The weights of grizzly bears in Jellystone National Park are normally distributed, with a mean of 56 pounds and a standard deviation of 8 pounds. You select a grizzly bear at random.

Use the Empirical Rule (68-95-99.7) to find the following probabilities. Do not round any answers.

a. Probability the bear weighs less than 72 pounds:

b. Probability the bear weighs between 72 and 80 pounds:

c. Probability the bear weighs more than 80 pounds: