A store manager gathers some demographic information from the store's customers. The following chart summarizes the age-related information they collected: Age << 20 20-29 30-39 40-49 50-59 > 60 Number of Customers 69 97 90 50 61 58 One customer is chosen at random for a prize giveaway. (Round answers to 4 decimal places.) a. What is the probability that the customer is at least 20 but no older than 49? b. What is the probability that the customer is either older than 39 or younger than 20? c. What is the probability that the customer is at least 50?

Men Women Boys Girls Survived 332 318 29 27 Died 1360 104 35 18 Use the  chart to answer the next set of questions: The chart represents the results after the Titanic ship sank. If one of the Titanic passengers is randomly selected, find the probability of getting a man or someone who survived the sinking?

A student response is selected at random from the results. State the exact probability the student response is from a freshman, given the student prefers to watch reality shows on television.

The table summarizes results from 976 pedestrian deaths that were caused by automobile accidents. DriverIntoxicated? Pedestrian Intoxicated? Yes No Yes 61 84 No 246 585 If one of the pedestrian deaths is randomly selected, find the probability that the pedestrian was not intoxicated or the driver was intoxicated.Report the answer as a percent rounded to one decimal place accuracy. You need not enter the "%" symbol.prob =