Exercise 8 Page 726

When calculating the experimental probability, we are comparing the number of times the event occurs to the number of times the experiment is done. P=Times the Event Occurs/Times the Experiment Is DoneWe know that Marisol rolled a number cube 10 times. This means that the number of times the experiment is done is 10. Out of these, she rolled an even number 7 times. Let's find how many times she rolled an odd number by subtracting 7 from the total number of rolls. 10 - 7 = 3 The number of times the event occurs is 3. Now we have enough information to calculate P(odd number).

The experimental probability of rolling an odd number is 310, which corresponds to option B.