Is it unusual?

Autor: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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angle at centre twice angle at circumference
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Objevte témata

Kužel
Fraktální geometrie
Komplexní čísla
Přímky
Algebra