Compound event
More Compound events
100

A glass jar contains 5 red, 3 blue and 2 green jelly beans. If a jelly bean is chosen at random from the jar, what is the probability that it is not blue?

what is 7/10

100

If you flip three fair coins, what is the probability that you'll get two tails and one head in any order?


what is 3/8

200

Three coins were tossed 200 times. The number of times 2 heads came up is 72. Then the probability of 2 heads coming up is:


what is 9/25

200

If you roll two fair six-sided dice, what is the probability that the sum is 9 or higher?

what is 10/36 or 5/18

300

A single 6-sided die is rolled. What is the probability of rolling a number that is not 5?


what is 5/6

300

Mathew rolls a number cube labeled with the numbers 1−6. He then flips a fair coin. What is the probability that he rolls a 4 and flips a head?


what is 1/12

400

A number from 1 to 5 is chosen at random. What is the probability that the number chosen is not odd?


what is 2/5

400

probability of rolling a 3 or a 6 on one roll of a number cube


what is 1/3

500

If you flip three fair coins, what is the probability that you'll get heads on the first two flips and tails on the last flip?


what is 1/8

500

You're playing a game where you defend your village from an orc invasion. There are 3 characters (elf, hobbit, or human) and 5 defense tools (magic, sword, shield, slingshot, or umbrella) to pick from.If you randomly choose your character and tool, what is the probability that you won't be a hobbit or use an umbrella?


what is 8/15