Probability and Statistics

Activity 11: A Foot is a Foot–Or is It?

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Wrap-up

Ask students:

Was the mean of the combined data from L2 the same as the mean from the Home screen?

What does our combined class data show?

Is the statement true that the average length of a human foot is 12 inches, or a foot?

Do you think our class data is accurate?

How could we make it even more accurate?

Where could we find data without measuring feet?

Do you think average foot sizes differ around the world?

How could we find out?

Assessment Suggestions

Have students find averages of other sets of data, such as average arm length in the class, and so on.

Have students write about the definition from the dictionary and support or disprove the statement using their class data.

Extensions

Find the average adult foot size and compare it to the average child foot size.

Research other countries and find out if average foot lengths differ around the world. Make speculations as to why foot lengths differ.

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