In Experiment 2, the probability of rolling each number on the die is always one sixth. The probability of landing on each color of the spinner is always one fourth.
In Experiment 1 the probability of each outcome is always the same. Rolling an even number (2, 4 or 6) is an event, and rolling an odd number (1, 3 or 5) is also an event.
A single outcome of this experiment is rolling a 1, or rolling a 2, or rolling a 3, etc. Outcomes: The possible outcomes of this experiment are 1, 2, 3, 4, 5 and 6.Įxperiment 2 illustrates the difference between an outcome and an event. What is the probability of each outcome? What is the probability of rolling an even number? of rolling an odd number? The possible outcomes of this experiment are yellow, blue, green, and red.Įxperiment 2: A single 6-sided die is rolled. After spinning the spinner, what is the probability of landing on each color? The probability of event A is the number of ways event A can occur divided by the total number of possible outcomes. Let's take a look at a slight modification of the problem from the top of the page.Įxperiment 1: A spinner has 4 equal sectors colored yellow, blue, green and red. In order to measure probabilities, mathematicians have devised the following formula for finding the probability of an event. The probability of landing on blue is one fourth. Probability is the measure of how likely an event is. One event of this experiment is landing on blue. The possible outcomes are landing on yellow, blue, green or red.Īn event is one or more outcomes of an experiment.
#Random spinner with 10 spots trial#
In the problem above, the experiment is spinning the spinner.Īn outcome is the result of a single trial of an experiment. DefinitionĪn experiment is a situation involving chance or probability that leads to results called outcomes. Let's look at some definitions and examples from the problem above. This problem asked us to find some probabilities involving a spinner. The chances of landing on red are 1 in 4, or one fourth. Solution: The chances of landing on blue are 1 in 4, or one fourth. What are the chances of landing on blue after spinning the spinner? What are the chances of landing on red? Problem: A spinner has 4 equal sectors colored yellow, blue, green and red. Learn About Calculating Probability With The Following Examples And Interactive Exercises.
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