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a die is rolled 10 times. find the chance of....

a)not getting 10 sixes
b)all the rolls showing 5 spots or less

I'm not sure how to do either, but for b, I think is it (5/6)^10 because each time there is a chance that the number will be 5 or less?

Please help. thank you!

  • stats -

    a. Chance of getting 10 sixes = 1/6^10, then getting not sixes = 1 - 1/6^10
    b. Same as a, since 5 or less would all be not 6s.

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