This is from the Guo study book

You throw a dice repeatedly until you get a 6. What's the prob that you need to throw more than 20 times to get a 6?

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p = 1/6

the solution says (1-1/6)^(20)

but why isn't is (1/6)(1-1/6)^20 since the probability function is p(1-p)^x?

You throw a dice repeatedly until you get a 6. What's the prob that you need to throw more than 20 times to get a 6?

-----

p = 1/6

the solution says (1-1/6)^(20)

but why isn't is (1/6)(1-1/6)^20 since the probability function is p(1-p)^x?

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