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Birthday paradox Activity

by David, 3 September 2013 | 5 comments

A wrapped gift, a party hat, decorative ribbon, and a cupcake with a lit birthday candle on a calendar. ©iStock.com/Double_Vision

How likely is it that at least two people out of 30 will share a birthday?

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How much is lots? Activity

by David, 25 March 2013 | 0 comments

Almost everyone uses the word lots, but what does it mean exactly? the only way to find out is to ask people!

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