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An unbiased cubic die has numbers 1 to 6 inscribed on each side. on average, how many rolls will you need in order to get a 6?
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An unbiased cubic die has numbers 1 to 6 inscribed on each side. on average, how many rolls will you need in order to get a 6?

User Rich Von Lehe
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(5/6)^x < 0.5
x = ceiling( log(0.5) / log(5/6) )
x = 4

Here I worked it out, hopefully this helps :)

User Shahid Iqbal
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