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OpenStudy (anonymous):
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.
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OpenStudy (king):
2/25 ?
OpenStudy (anonymous):
Nope. the answer is 0.3660
OpenStudy (anonymous):
Not sure how to get it though.
OpenStudy (anonymous):
It's geometric distribution, to give a tip.
OpenStudy (king):
Hmmm.Can I let u know by tomorrow?
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OpenStudy (anonymous):
Sure :)
OpenStudy (king):
When will u come online?
OpenStudy (anonymous):
Not sure... usually around now I guess.
OpenStudy (king):
ok i shall try by tomorrow or else surely by wed.
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