Experimental Probability

We are learning to…calculate the experimental probability of an event happening.

Tuesday, April 18, 2023

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.

chances of event happening

total number of possible outcomes for the event

Experimental Probability Activity #1

Girls Boys Total

Number Buying Lunch Today

Number Packing Lunch Today

Total

Experimental Probability Activity #1

Girls Boys Total

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

Girls Boys Total

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

Girls Boys Total

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

Girls Boys Total

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

Girls Boys Total

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.