In a binomial distribution n = 7 and p = 0.20. Find the probabilities of the following events: (Round the final answers to 3 decimal places.) a. x=2. Probability b. XS 2 (the probability that X is equal to or less than 2). Probability c. X Z 3 (the probability that x is equal to or greater than 3). Probability Steele Electronics Inc. sells expensive brands of stereo equipment in several shopping malls. The marketing research department of Steele reports that 28% of the customers entering the store that indicate they are browsing will, in the end, make a purchase. Let the last 18 customers who enter the store be a sample. a. How many ofthese customers would you expect to make a purchase? (Round the final answer to the nearest whole number.) Number of Customers b. What is the probability that exactly four of these customers make a purchase? (Round the final answer to 4 decimal places.) Probability c. What is the probability 9 or more make a purchase? (Round the final answer to 4 decimal places.) Probability d. Does it seem likely at least one will make a purchase (\"Iikely\" refers ifthe probability is more than 70%)? (Click to select) v