2 years ago

If 20 coins are tossed, find the probability that they'll all land on tails.

1 answer:

5 0

The odds of 1 coin landing tails is 1/2, for 2 coins it would be 1/4, 3 would be 1/8, 4 would be 1/16, etc.

the way you find this is by doing 1/2^n where n is the number of coins you have. if you plug in 20, you get 1/1,048,576

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