problem 240 mathcounts

Mathematics
Tutor: None Selected Time limit: 1 Day

If four people each randomly pick an integer from 1 to 10, inclusive, what is the probability that at least two of the people pick the same integer? Express your answer to the nearest tenth.

Oct 5th, 2014

The probability that all four pick different integers = 10.9.8.7/10^4 = 5040/10000

The probability that at least two pick the same integer = 4960/10000 =0.496

Oct 5th, 2014

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Oct 5th, 2014
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