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Reality Game Questions of the Day: Mean Experimentations with Redundant Pedometers

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Why so “mean”?

Dad wears two pedometers to measure how many steps he takes each day.

Pedometer “A” recorded 6,350 steps.

Pedometer “B” recorded 8,948 steps.

What is the “mean” number of steps Dad took?

Why do some people use the word “mean” instead of “average” to describe this?

Pedometer mystery

Pedometer mystery (Photo credit: sallypnut)

Why so redundant? And repetitive?

Why would Dad use two pedometers and then calculate the mean of the results of each?

Why so different?

Why would there be a difference of __________ between the pedometer readings? What is your hypothesis?

Why so scientific?

Design an experiment that attempts to test your hypothesis. HINT: It would be good to first learn how pedometers function with the body and go from there.


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