An experiment consists of tossing 4 fair​ (not weighted)​ coins, except one of the 4 coins has a head on both sides. Compute the probability of obtaining exactly 3 heads.

A bad contains 46 U.S. quarters and 4 Canadian quarters. (The coins are identical in size.) If 4 quarters are randomly picked from the bag, what is the probability of getting at least one Canadian quarter? (Round your answer to kne decimal place.)

A fair 2-sided coin is tossed 3 times. What is the probability that the coin lands on heads at most twice?

In a game of blackjack played with one deck, a player is initially dealt 2 different cards from the 52 different cards in the deck. A winning blackjack hand is won by getting 1 of the 4 aces, and 1 of 16 other cards worth ten points The two cards can be in any order. Find the probability of being dealt a blackjack hand. What approximate percentage of hands are winning blackjack hands?

A coin is tossed 9times. What is the probability of obtaining 6 heads in a row ?

A manufacturing machine has a 7% defect rate.If 4 items are chosen at random, what is the probability that at least one will have a defect?

A fair die is rolled 6 times. What is the probability it comes up 4 at least once?

A bag of the same size small balls contains 6 blue balls, 5 red balls, 5 yellow balls, and 4 green balls. What is the probability of selecting a blue or green ball on the first draw?   2/5   1/2   1/10   9/20

Katy has 61 students in her MTH 103 class. There are 35 students who identify as female. Each day Katy calls on 5 different students to present their work to the class. What is the probability that all 5 students Katy calls on identify as female?

In a study done in my chicken coop, 82% of my birds enjoy eating earwigs. Choose 7 birds at random.1. Find the probability none of them enjoy eating earwigs.