1. If astudent is chosen randomly, what is the probability that he or she is not in any of the se classes? 2-If a student is chosen randomly, whatis the probability that he or she is taking exactly one language class 2

There are 9 people taking part in a raffle. Bob, Elsa, Hans, Jim, Kira, Lena, Omar, Ravi, and Soo. Suppose that prize winners are randomly selected from the 9 people. Compute the probability of each of the following events. Event A: The first four prize winners are Omar, Bob, Soo, and Ravi, regardless of order. Event B: Lena is the first prize winner, Kira is second, Hans is third, and Soo is fourth. Write your answers as fractions in simplest form. P(A) = P (B) = 0 olo X

You are given that P(A) = 0.5, P(B) = 0.25, and P(A O B) = 01. What is the probability that neither A nor B happens? Multiple Choice 0.65 0.15 0.25 0.35 None of the preceding is correct.

18. In a particular group of people, 10 are right-handed and 4 are left-handed. If 5 of these people are chosen at random, what is the probability that exactly 1 left-handed person is selected?

Suppose you have a class with 30 students ‒ 10 freshmen, 12 sophomores, and 8 juniors.   a) You pick one student at random. What is the probability that the student is not a junior?  b) You pick two students at random, one at a time. What is the probability that both are freshmen? c) You pick two students at random, one at a time. What is the probability that the second student is a freshman, given that the first is a freshman?

18.There are 100 tiles in a word game, and 2 of the tiles are blank. Kiera draws 6 tiles, and none of them are blank. What is the probability that she draws a blank tile on her seventh selection? 1/100 1/94 1/47 1/6

An urn contains 7 red, 3 white, and 6 black balls. One ball is drawn from the urn, it is replaced, and a second ball is drawn. Construct a probability tree to determine the probability that one ball is white W and one is red R. Pr(one W none R) = 21 Pr(one W none R) = 128 Pr(one W none R) = Pr(one W none R) = 50 Pr(one W none R) = 21 256 7 75

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7) In a standard 52-card deck, there are four suits (hearts, diamonds, clubs, spades), each with thirteen cards (2, 3, 4, 5, 6, 7, 8, 9, 10, J, Q, K, and A). Find the probability that a. b. C. d. e. one card is selected which is a Q or a club. a Q is selected, replaced, and then a club is selected. a diamond is selected and then, without replacement, a club is selected. a face card (J, Q, K) is selected, replaced, and then another face card is selected. a face card (J, Q, K) is selected and then, without replacement, another face card is selected.

Solve the following: 1.) In a mathematics seminar, 15 students are in grade 7, 10 are in grade 8, 20 are in grade 9 ans 30 are in grade 10. If a student will be chosen at random,what is the probability of selecting a grade 10 student? 2.) From a basket with 10 apples, 8 oranges , and 7 mangoes, a fruit will be selected. What is the probability of selecting an orange? 3.) abigail placed 50 strips of paper numbered from 1 to 50 inside a fishbowl. If she picked a strip of paper at random, what was the probability of getting a strip of paper numbered from 25 to 40? 4.) In tossing three coin, what is the probability of obtaining least one head? 5.)The probability that anna will be invited by her friends to a dance party is .8. What is the probability that she will not be invited?