A marketing research group conducted the survey to determine where people did their holiday shopping. 60% of the sample said they shopped at a local mall, 30% said that they shopped in down town area and 15% said that they shopped both at local mall and in downtown area.
a. Determine the probability that a customer does not shop downtown?
b. Determine the probability that a customer shops in the downtown area or in a local mall?
c. Given that the customer shopped in local mall, determine the probability that he will shop downtown?
d. Find out the probability that he shopped at the local mall, given that a customer shopped downtown?