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Bat Wings

Two students collected some data on the wingspan of bats, but each lost a measurement. Can you find the missing information?

Mediant Madness

Kyle and his teacher disagree about his test score - who is right?

Kate's Date

When Kate ate a giant date, the average weight of the dates decreased. What was the weight of the date that Kate ate?

Statistical Shorts

Age 11 to 16
Challenge Level

Can you think of a situation when each statement isn't true?
Can you think of a situation when each statement is true?