Texas Instruments TI-73 Teachers Manual page 72

Probability and Statistics
Wrap-up
Ask students:
Was the mean of the combined data from
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.
Activity 11: A Foot is a Foot – Or is It?
the same as
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