mariambaluch21 mariambaluch21

01-05-2020
Mathematics

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John flips a fair coin 40 times. How many times can he expect heads to appear?
4
10
15
20

Respuesta :

01-05-2020

The answer is 20, since it’s heads and tails you have a half and half chance, therefore you divide 40 in half and get 20

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