The probability that a person exercises regularly is 0.212. The probability that a person lives to the age of 80 or more is 0.30694. The probability that a person does not exercise regularly and lives to the age of 80 or more is 0.159176.
a. Create a contingency table based on these probabilities.
b. What is the probability that a person exercises regularly if the person lives to the age of 80 or more?
c. What is the probability that a person does not exercise regularly if the person does not live to the age of 80?
d. Does living to the age of 80 or more depend on exercising regularly?