A total of 191 shoppers at a large suburban mall were asked two questions: 1. Did you see a TV ad for the sale at store M? 2. Did you shop at store M? 89 shoppers indicated they had seen the advertisement; 65 had seen the ad and did not shop at M; 94 shoppers had not shopped at M. One of the shoppers is chosen at random. What is the probability that the person saw the ad and shopped at M? ( 2 dec pl)

An internet research company surveyed 90 online shoppers, each of whom made one purchase today. The company recorded the type of purchase each shopper made. Here is a summary.Type of purchase Number of shoppersToys 28Electronics 24Beauty supplies 17Office supplies 21Three shoppers from the survey are selected at random, one at a time without replacement. What is the probability that all three of the shoppers purchased toys?Do not round your intermediate computations. Round your final answer to three decimal places.(If necessary, consult a list of formulas.)

Two hundred patients who had either hip surgery or knee surgery were asked whether they were satisfied or dissatisfied regarding the result of their surgery. Out of the 95 that had knee surgery, 70 were satisfied. Out of the 105 that had hip surgery, 15 were dissatisfied. If one person from the 200 patients is selected at random, what is the probability that the person had knee surgery?Question 4Select one:a.5/19b.21/40c.7/20d.19/40

At a pizza shop, 80% of the customers order a pizza, 15% of the customers order a salad, and 10% of the customers order both a pizza and a salad.If a customer is chosen at random, what is the probability that he or she orders either a pizza or a salad?A.0.65B.0.12C.0.95D.0.85

Twenty five individuals are randomly selected out of 100 shoppers leaving a local bedding store. Each shopper was asked if they made a purchase during their visit. Each of the shoppers has the same probability of answering yes to having made a purchase. The probability that exactly four of the twenty-five shoppers made a purchase could best be found by?Select one:a.using the normal distribution.b.using the binomial distribution.c.using the Poisson distribution.d.using the exponential distribution.e.using the uniform distribution.

A department store surveyed 428 shoppers, and the following information was obtained: 217 shoppers made a purchase, and 294 were satisfied with the service they received. If 50 of those who made a purchase were not satisfied with the service, how many shoppers did the following?(a) made a purchase and were satisfied with the service(b) made a purchase or were satisfied with the service(c) were satisfied with the service but did not make a purchase(d) were not satisfied and did not make a purchase