Pearson Algebra 1 Common Core, 2011
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Pearson Algebra 1 Common Core, 2011 View details
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Exercise 42 Page 790

1/3

Practice makes perfect
When calculating probability, you are comparing the number of favorable outcomes to the number of possible outcomes. To calculate the probability that a spinner would land on a part numbered more than four we should 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 which is also the number of possible outcomes. To find favorable outcomes, we should calculate how many outcomes result in a spinner landing on a part numbered greater than four.

Out of these, there are 2 such outcomes, which is also the number of favorable outcomes. Now we have enough information to calculate P(More than 4).
P=Favorable Outcomes/Possible Outcomes
P(More than4)=2/6
P(More than4)=1/3
The probability of a spinner landing on a part numbered greater than four is 13, which can also be written as 1:3.