A survey was conducted to find out if the disposable income, (High, H) or (Low, L), of consumers affects whether they purchase on a mobile device (M) or they purchase on a computer (C). The survey reported that 60% all consumers purchased on a mobile and that 45% of all consumers had low disposable income. The survey also discovered that there was a 60% chance that someone with low disposable income made a purchase using a computer.

a. What is the probability that a person with high disposable income purchases on a mobile?

b. What is the probability that a consumer who purchases on a mobile device has high disposable income?

c. What is the probability that a selected consumer has low disposable income or purchases on a mobile device?

d. What is the probability that a selected consumer has high disposable income and purchases from a computer?

e. If you know that someone has a high disposable income, does that increase or decrease the likelihood they would make a purchase on a mobile? By how much?