4.3. Binompdf Function http://www.ck12.org
- What is the probability that out of 11 coin flips, 4 will come up tails?
- The probability of a spinner landing on the color yellow is 65%. What is the probability that when a spinner
is spun 75 times, it lands on yellow 45 times? - The probability of getting a 4 or greater on one roll of a fair die is 50%. If a fair die is rolled 25 times, what is
the probability of getting a 4 or greater 14 times? - The probability of Amy’s alarm clock going off when it supposed to in the morning is 95%. If Amy sets her
alarm all 7 days next week, what is the probability that it goes off when it is supposed to on 6 of those days? - The probability of randomly guessing the correct answer to a question on a multiple-choice test is 20%. If the
test consists of 20 multiple-choice questions, what is the probability of randomly guessing the correct answer
to 8 of the questions? - Bob is randomly choosing a card from a deck of cards and then replacing it. If he does this 15 times, what is
the probability that he chooses a diamond 5 times? - The probability that a game card given out to customers at a fast food restaurant is a winner is 10%. If the
restaurant gives out 100 games cards in a day, what is the probability that 10 are winners? - 10 people each randomly chose a digit from 0 to 9. What is the probability that none of the people chose a 6?
- Suppose that each year, the probability of getting your tax return audited is 18%. What is the probability of
getting your tax return audited exactly once in the next 5 years?