Is Mrs. Gallas a Good Free Throw Shooter?

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Mrs. Gallas claims she is an 80% free throw shooter. To prove her skills, she shoots 50 free throws and makes 32 shots. Is Mrs. Gallas exaggerating about her free throw skills?

To test Mrs. Gallas’ claim, we will assume she really is an 80% free throw shooter and investigate what results could happen by chance alone.

For a more detailed discussion, see this Stats Medic lesson plan.

Investigate the possibilities yourself:

This free throw simulator assumes Mrs. Gallas truly is an 80% free throw shooter.

Activity complete!

In the simulation, Mrs. Gallas made of 50 shots ().

Simulation Results

Count the number and percent of dots or equal to

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Run the activity this many times silently and add the results to the plot:
Add multiple values separated by spaces or commas:
Delete observation:
(Mouse over data to see exact values.)

Quick Add Quickly add simulations (max 2000) of 50 free throws.