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Experimental Probability the likelihood of an event is estimated by repeating an experiment many times and observing the number of times the event happens.

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Presentation on theme: "Experimental Probability the likelihood of an event is estimated by repeating an experiment many times and observing the number of times the event happens."— Presentation transcript:

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2 Experimental Probability the likelihood of an event is estimated by repeating an experiment many times and observing the number of times the event happens

3 PROBABILITY = Number of times the event occurs total number of trials

4 You must conduct an experiment in order to determine the experimental probability!

5 Lets do an experiment in order to find the experimental probability of rolling certain numbers on a die!

6 Draw this table. My results Roll Tally Marks Frequency

7 Directions: 1. Roll the die on your desk. 2. Mark your result on the table. 3. Do this 20 times!!

8 When you have reached 20……STOP! Put your die down on your desk and do not play with it!

9 Questions: You must write the following questions and then answer them.

10 1. What were the possible outcomes when rolling a die?

11 2. Compare your table with a neighbor. Did they get the same results? Why or why not?

12 3. Using your data, what is the P(1)?

13 4. What is P(2)?

14 5. What is P(3)?

15 6. What is P(4)?

16 7. What is P(5)?

17 8. What is P(6)?

18 9. What is P(7)?

19 10. Now, add up your answers for questions 3 – 8. What do you notice?


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