Pearson Algebra 1 Common Core, 2011
PA
Pearson Algebra 1 Common Core, 2011 View details
Chapter Test

Exercise 14 Page 791

1/2

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 an orange section 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 4 sections on the spinner which is also the number of possible outcomes. Now we can find how many outcomes will result in the spinner landing on the orange part.

Out of these, there are 2 such outcomes which is also the number of favorable outcomes. Now we have enough information to calculate P(Orange).

P=Favorable Outcomes/Possible Outcomes
P(Orange)=2/4
P(Orange)=1/2

The probability of a spinner landing on an orange section is 12, which can also be written as 1:2.