Suppose 60 percent of the customers at Pizza Palooza order a square pizza, 80 percent order a soft drink, and 48 percent order both a square pizza and a soft drink.   Is ordering a soft drink independent of ordering a square pizza?

At a particular university, 60% of the students who apply for admission are in-state residence, 30% are from other states and the remaining applicants are international students. Of the in-state applicants, 40% are admitted. Further, 25% of applicants from other states are admitted, and 20% of international applicants are admitted. What percent of applicants are admitted?

Is ordering a soft drink independent of ordering a pizza

Raai works at the customer service call center of a major credit card bank. Cardholders call for a variety of reasons, but regardless of their reason for calling, if they hold a platinum card, Raaj is instructed to offer them a double-miles promotion. About 6% of all cardholders hold platinum cards, and about 51% of those will take the double-miles promotion. On average, how many calls will Raaj have to take before finding the first cardholder to take the double-miles promotion? 2.525 calls (Round up to the nearest call.)

Of the 50 researchers in a workgroup, 40 percent will be assigned to Team A and the remaining 60 percent to Team B. However, 70 percent of the researchers prefer Team A and 30 percent prefer Team B. What is the lowest possible number of researchers who will NOT be assigned to the team they prefer?

In a 4 point grade system, an A is worth 4 points, a B is worth 3 points, a C is worth 2 points and a D is worth 1 point.  No points are awarded for an F.  Last semester Tanya received a B in a 4 credit hour course, an A in a three credit hour course, a C in a three credit hour course, and an A in another three credit hour course.  Grade point average (GPA) is calculated as a weighted average using the credit hours as weights and the number of points corresponding to the grades as pieces of data.  Calculate Tanya's GPA for the previous semester.  Round your answer to the nearest hundredth and explain in complete sentences your process.  Show all work.

Forty-two percent of all registered voters in a particular state prefer life in prison without parole over the death penalty for a person convicted of first degree murder. Among Latino registered voters in the state, 53% prefer life in prison without parole over the death penalty for a person convicted of first degree murder. 37.8% of all citizens in the state are Latino.In this problem, define variables as the following. •   C = Registered voters preferring life in prison without parole over the death penalty for a person convicted of first degree murder. •   L = Latino citizens Suppose that one registered voter is randomly selected.Are L and C independent events? Show why or why not. A)Yes, because P(C ) equals P(C|L). B)Yes, because P(C ) does not equal P(C AND L).    C)No, because P(C ) equals P(C|L). D)No, because P(C ) does not equal P(C|L).No, because P(C ) equals P(C AND L).

Last year's freshman class at big state university totaled 5,304 students. Of those, 1,257 received a merit scholorship to help offset tuituon costs their freshman year (although the amount varied per student). The amount a student recieved was N($3,443, $450). If the cost of full tuition was $4,500 last year, what percentage of students who recieved a merit scholarship did not recieve enough to cover full tuition? (Round your answer to the nearest whole percent.)

An online retailer monitors the number of visitors to the homepage, and the number of them who actually make purchases. She wants to test two new versions of the homepage, and the following table shows the conversion rate (number of purchase divided by the number of visits) before and after the change.   Original page Modified page 1 Modified page 2 Number of visitors 2841 2297 2132 Number that purchase 77 107 90 Test whether the three versions have the same conversion rate.

Based on long experience, an airline found that about 4% of the people making reservations on a flight from Miami to Denver do not show up for the flight. Suppose the airline overbooks this flight by selling 267 ticket reservations for an airplane with only 255 seats.