A national survey indicated that 40% of adults conduct their banking online. It also found that 60% are under the age of 50, and that 30% are under the age of 50 and conduct their banking online.

a) What percentage of adults do not conduct their bankingonline?

b) What type of probability is the 30% mentionedabove?

c) Construct a contingency table showing all joint and marginal probabilities.

d) What is the probability that an individual conducts banking online given that the individual is under the age of50?

e) Are Banking online and Ageindependent? Explain.