Practice Probability in Math
Use these practice problems to test your method after reviewing the concept explanation and worked examples.
Quick Recap
Probability is a number between 0 and 1 (inclusive) that measures how likely an event is to occur, where 0 means impossible and 1 means certain.
How confident you should be that something will happen. 0 = impossible, 1 = certain.
Example 1
easyA bag contains 5 red, 3 blue, and 2 green marbles. What is the probability of drawing a blue marble?
Example 2
mediumTwo fair dice are rolled. What is the probability that the sum is 7?
Example 3
mediumA card is drawn at random from a standard 52-card deck. What is the probability it is a heart or a king?
Example 4
mediumA box contains 4 red, 5 blue, and 1 green marble. Two marbles are drawn without replacement. What is the probability of getting one red and one blue in any order?
Example 5
mediumA bag contains 4 red, 3 blue, and 5 green marbles. What is the probability of drawing a red or blue marble?