Exercise 5 Page 364

When calculating probability, we are comparing the number of favorable outcomes to the number of possible outcomes. To calculate the probability that an odd number will be rolled we will use the Probability Formula. P=Favorable Outcomes/Possible Outcomes On every side of a six-sided number cube we have a different number from 1 to 6. Therefore, rolling a six-sided number cube has 6 possible outcomes — one per each side. Possible Outcomes: 6 There are 3 sides with an odd number, 1, 3, or 5. Therefore, we have 3 favorable outcomes. Possible Outcomes: 6 Favorable Outcomes: 3 Now we have enough information to calculate P(rolling an odd number).

The probability of rolling an odd number is 12, which can also be written as 1:2.