Simple Probability: Learn
Probability == 68 ÷ 87 = 0.781609...
total ways a specific outcome will happen
total number of possible outcomes
Example: There are 87 marbles in a bag and 68 of them are green. If one marble is chosen, what is the probability that it will be green?Probability =
specific: green (68)
total: all (87)
Watch the instructions carefully to determine how many decimals places to round, or if the number should be converted to a percent. In the example above, if we round to two decimal places, we get 0.78.
Simple Probability: Practice
Find the probability to the nearest hundredth.
Desired outcomes = ; Possible outcomes =
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This is 0 percent correct.
|Game Name||Description||Best Score|
|How many correct answers can you get in 60 seconds?||0|
Extra time is awarded for each correct answer.
Play longer by getting more correct.
|How fast can you get 20 more correct answers than wrong answers?||999|
Math Lessons by Grade
- Estimation and Mental Math
- Naming Numbers
- Percents and Ratios
- Place Value