Experimental Probability We are learning to…calculate the experimental probability of an event happening. Monday, November 30, 2015.

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Presentation transcript:

Experimental Probability We are learning to…calculate the experimental probability of an event happening. Monday, November 30, 2015

Experimental Probability Probability – A number from 0 to 1 that tells how likely an event is to happen.  “What numbers are between 0 and 1?”  Probability is usually shown as a fraction in simplest form.  The fraction will be in the form: Experimental Probability – The chances of an event happening that is calculated using the results of an experiment.

Experimental Probability Activity #1 GirlsBoysTotal Number Buying Lunch Today Number Packing Lunch Today Total

Experimental Probability Activity #1 GirlsBoysTotal Number Buying Lunch Today Number Packing Lunch Today Total What is the experimental probability of randomly picking a boy out of the entire class who is buying lunch today?

Experimental Probability Activity #1 GirlsBoysTotal Number Buying Lunch Today Number Packing Lunch Today Total What is the experimental probability of randomly picking a girl out of the entire class who is packing lunch today?

Experimental Probability Activity #1 GirlsBoysTotal Number Buying Lunch Today Number Packing Lunch Today Total What is the experimental probability of randomly picking a person buying lunch just out of the group of girls?

Experimental Probability Activity #1 GirlsBoysTotal Number Buying Lunch Today Number Packing Lunch Today Total What is the experimental probability of randomly picking a person packing lunch just out of the group of boys?

Experimental Probability Activity #1 GirlsBoysTotal Number Buying Lunch Today Number Packing Lunch Today Total What is the experimental probability randomly picking a boy out of the entire class?

Experimental Probability Activity #2 Directions:  With your group members roll 2 number cubes (at the same time) a total of 30 times.  After each roll find the sum of the two number cubes.  Place a tally in the table below in the appropriate column.  After tallying 30 rolls write the total, as a number, that each sum occurred. Add your results together and find the number of “total rolls” to make sure you rolled the number cubes a total of 30 times.  Next find the experimental probability of rolling each sum with a pair of number cubes.  Finally, answer the critical thinking questions below in complete sentences.