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7:12-2 Experimental probability. vocab Experimental probability- ratio of the number of times an event occurs to the total number of trials.

Published byLorraine Dickerson Modified over 8 years ago

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Presentation on theme: "7:12-2 Experimental probability. vocab Experimental probability- ratio of the number of times an event occurs to the total number of trials."— Presentation transcript:

1 7:12-2 Experimental probability

2 vocab Experimental probability- ratio of the number of times an event occurs to the total number of trials

3 Experimental probability In 25 matches against Sam, Peter wins 15 matches. What is the experimental probability that Peter will beat Sam? Peter won 15 matches There are a total of 25 matches So the experimental probability is 15/25  3/5 What is the experimental probability that Sam will beat Peter?

4 samples Jacob plays around the world against Mr. M. Jacob wins 5 out of 8 games. What is the experimental probability that Jacob wins? What is the experimental probability that Mr. M wins?

5 Simulating an event A quality control officer found that 10 out of 120 toys were flawed. What is the probability of finding a flawed toy? How many would you expect to find in 250 toys?

6 The probability that you have a younger sibling is 25%. If 125 students are surveyed, how many are expected to have a younger sibling?

7 Questions?

8 homework Worksheet p. 235 skip 11

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