Probability

An experiment consists of drawing 4 balls from a bag and counting the number of red balls. The table gives the probability of each outcome. What is the probability of drawing fewer than two red balls?

• 0.025

• 0.009

• 0.385

• 0.585

An experiment consists of drawing 4 balls from a bag and counting the number of red balls. The table gives the probability of each outcome. What is the probability of drawing more than 1 red ball?

• 0.36

• 0.615

• 0.036

• 0.0048

Erin's team has won 17 of their 20 games this season. What is the probability that they will win their next game?

• 0.3 or 30%

• 0.117 or 11.7%

• 0.15 or 15%

• 0.85 or 85%

A researcher conducted a survey of 324 high school students and found that 54 of them were enrolled in advanced chemistry. What is the probability that a randomly selected student is enrolled in advanced chemistry?

• 1/6

• 5/6

• 1

• 3/6

Katy hits the ball 58% of the time she bats. Using the table, estimate the probability that she will hit the ball at least 3 times in her next 4 bats. Show all your work!

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Sandra hits a golf ball over 120 yards on her first drive 67% of the time. Use the table to estimate the probability that she will hit the ball over 120 yards at least 4 times in the next 7 times she drives (hits it).

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The PIN numbers for a cash card at a bank contain four digits 1-9. All codes are equally likely. Find the number of possible PIN numbers. Write only your answer.

6 swimmers are competing in the 100-yard butterfly. In how many different orders can all of the swimmers finish the race? Enter only your answer.

Find the number of different 4-person teams that can be made from 14 people. Enter only your answer.

There are 3 apples, 5 oranges, and 2 tangerines in a bowl of fruit. Two pieces of fruit are chosen at random and not replaced. What is the probability of choosing an apple and then an orange? Write your answer as a fraction. Enter only your answer. Simplify!