A store manager gathers some demographic information from the store's customers. The following chart summarizes the age-related information they collected: Number of Customers Age < 20 91 20-29 72 30-39 78 40-49 80 50-59 81 > 60 95 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 30 but no older than 49? b. What is the probability that the customer is either older than 59 or younger than 20? c. What is the probability that the customer is at least 50?

We are interested in analyzing data related to college football. Use S to denote the team is in the SEC and use W to denote a team has a winning season. The probability that a team is in the SEC in the data set is 5.5%. The probability that a team has a winning season is 52.5%. The probability that a team is in the SEC and has a winning season is 3.55%. What percentage of teams are in the SEC or had a winning season? b. What percentage of people teams are in the SEC and did NOT have a winning season? Given a team had a winning season, what is the probability that they are in the SEC? а. с.

In an​ experiment, college students were given either four quarters or a​ $1 bill and they could either keep the money or spend it on gum. The results are summarized in the table. Complete parts​ below.   Purchased Gum Kept the Money   Students Given Four Quarters 33 13   Students Given a​ $1 Bill 15 30 a. Find the probability of randomly selecting a student who spent the​ money, given that the student was given four quarters. b. Find the probability of randomly selecting a student who kept the​ money, given that the student was given four quarters. c. What do the preceding results​ suggest?choose below     A. A student given four quarters is more likely to have kept the money than a student given a​ $1 bill.   B. A student given four quarters is more likely to have kept the money.   C. A student given four quarters is more likely to have spent the money than a student given a​ $1 bill.   D. A student given four quarters is more…

Subject;

You want to assess the differences in frequency counts for four different groups. You know there are 150 people total. Without any additional information about how the data is distributed, what would you use for the "expected frequency" in each group?     a.1/4 b.37.5 c.25 d..375

A store manager gathers some demographic information from the store's customers. The following chart summarizes the age-related information they collected: Age 60 Number of Customers 77 63 99 74 81 89 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 40 but no older than 59? 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?