Q18. John and Mary are taking a mathematics course. The course has only three grades: A, B, and C. The probability that John gets a B is 3. The probability that Mary gets a B is 4. The probability that neither gets an A but at least one gets a B is .1. What is the probability that at least one gets a B but neither gets a C?

What Are A Plumber's Favorite Shoes? Write the letter of each answer in the box containing the exercise number. Find the probability. 1. In a group of 25 students at lunch, 10 prefer ketchup on their hamburger, 10 prefer mustard on their hamburger, and 5 like both ketchup and mustard on their hamburger. The rest of the Answers 3 25 students in the group prefer neither. What is the probability that a student selected from this group will prefer ketchup or mustard on their hamburger? L. 13 2. A card is randomly selected from a standard deck of 52 cards. What is the probability that it is a 2 or an 8? G. 3 3. In a class of 50 high school juniors, 32 students either play a 3 С. sport or are in the marching band. There are 22 juniors who play a sport and 16 who are in the marching band. What is the probability that a randomly selected junior plays a sport and is in the marching band? S. 4. You roll a die. What is the probability that you roll an even number or a 5? 5. You roll a die. What…

Find the probability you pick blue from the last box if you… Pick one marble from box 1, place it in box 2. Pick one marble from box 2, place it in box 3. Then choose a marble from Box 3.Box 1: 1 white, 1 blue; Box 2 has 2 white, 3 blue and Box 3 has 1 white and 2 blue. Show your work

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In Dian's class there will be an election for class administrators. The board that will be elected consists of 5 students.a. What is the probability that 3 boys are selected?b. What is the probability that a male student less than 4 is selected? Solve sub parts A&B thank u

I have a probability question.

A bag of skittles contain 18 yellow , 12 green,  20 red , 10 orange and 14 purple skittles. Find the probability P( Purple | red ) .  a. 0  b. 7/18 c. 7/37 d. 7/27

Solve part D and E please

Katherine works at a grocery store and is assigned their daily duty by the shift manager in charge. When Kim is the shift manager, Katherine is assigned the cash register 85% of the time. When Sophia is the shift manager, Katherine is assigned the cash register 30% of the time. The probability that Kim is the shift manager is and the probability that Sophia is 3 the shift manager is. Determine the probability, to the nearest hundredth, that Katherine works the cash register.

please solve C a and b answer 0.1631