# Question

A national survey indicated that 30% of adults conduct their banking online. It also found that 40% are under the age of 50, and that 25% are under the age of 50 and conduct their banking online.

a) What percentage of adults do not conduct their banking online?

b) What type of probability is the 25% mentioned above?

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 of 50?

e) Are Banking online and Age independent? Explain.

a) What percentage of adults do not conduct their banking online?

b) What type of probability is the 25% mentioned above?

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 of 50?

e) Are Banking online and Age independent? Explain.

## Answer to relevant Questions

Facebook reports that 70% of their users are from outside the United States and that 50% of their users log on to Facebook every day. Suppose that 20% of their users are United States users who log on every day. a) What ...Respond to the following questions: a) A casino claims that its roulette wheel is truly random. What should that claim mean? b) A reporter on Market Place says that there is a 50% chance that the NASDAQ will hit a new high ...A toy company is preparing to market an electronic game for young children that “randomly” generate a color. They suspect, however, that the way the random color is determined may not be reliable, so they ask the ...You are assigned to be part of a team of three analysts of a global management consulting company as described in Exercise 28. What is the probability that of your other two teammates: In Exercise, You work for a large ...For the same kind of lottery as in Exercise 3, which of the following strategies can improve your chance of winning? If the method works, explain why. If not, explain why using appropriate statistics terms. a) Choose ...Post your question

0