Pearson Algebra 1 Common Core, 2011
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Pearson Algebra 1 Common Core, 2011 View details
7. Theoretical and Experimental Probability
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Exercise 12 Page 773

1/6

Practice makes perfect
When calculating a probability, we are comparing the number of favorable outcomes to the number of possible outcomes. To calculate the probability of a spinner landing on number 5, we will use the Probability Formula. P=Favorable Outcomes/Possible Outcomes Now we can look at the spinner and find the number of possible outcomes.
There are 6 numbers on the spinner. Therefore, the number of possible outcomes is 6. Now, we can find how many outcomes will result in the spinner landing on number five. 1, 2, 3, 4, 5, 6 Out of these, there is 1 such outcome which, is the number of favorable outcomes. Finally, we have enough information to calculate P(5).
P=Favorable Outcomes/Possible Outcomes
P(5)=1/6
The probability of the spinner landing on number five is 16, which can also be written as 1:6.