Is it unusual?

Author:Steve Phelps

A jar has 15 black and 10 white marbles. Draw a sample of 8. Count the number of white beads you have. Then examine if it is unusual to have 5 (or more) white beads out of 8.

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အခြေခံ data အခေါ်အဝေါ်များ
Dividing a 3-digit number by a 1-digit number (1)
bewijs stelling van Pythagoras

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