estimate the probability

John runs a computer software store. Yesterday he counted 135 people who walked by the store, 64 of whom came into the store. Of the 64, only 27 bought something in the store. (Round your answers to two decimal places.) (@) Estimate the probability that a person who walks by the store will enter the store. (b) Estimate the probability that a person who walks into the store will buy something. c) Estimate the probability that a person who walks by the store will come in and buy something. (d) Estimate the probability that a person who comes into the store will buy nothing. [-/2.65 Points] DETAILS BBUNDERSTAT12 4.2.003.MI. MY Given P(A) = 0.5 and P(B) = 0.3, do the following. (a) If A and B are mutually exclusive events, compute P(A or B). (b) If P(A and B) = 0.1, compute P(A or B)