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Published byBrianna McAllister Modified over 2 years ago

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

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

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

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Draw this table. My results Roll Tally Marks Frequency

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

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

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

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

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

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

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4. What is P(2)?

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5. What is P(3)?

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6. What is P(4)?

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7. What is P(5)?

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8. What is P(6)?

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9. What is P(7)?

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

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