Question

A certain irrational number has a decimal expansion in which each digit is randomly chosen from the set {0,1,2,3,4,5,6,7,8,9}. Find the probability that THERE is no pair of 9s in the first 100 pairs of digits.

Answer 1

2/25 ?

Answer 2

Nope. the answer is 0.3660

Answer 3

Not sure how to get it though.

Answer 4

It's geometric distribution, to give a tip.

Answer 5

Hmmm.Can I let u know by tomorrow?

Answer 6

Sure :)

Answer 7

When will u come online?

Answer 8

Not sure... usually around now I guess.

Answer 9

ok i shall try by tomorrow or else surely by wed.