math

a 2 cakes are divided into 10 equal pieces. what is the probability that there is no ring in the fist slice or second slice? HOw do i get started???

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asked by Mackenzie
  1. I'm not sure what you mean by "no ring." Is there a ring inserted into one of the cakes?

    You have 20 units. The probability of anything occurring (or not occurring) in one of these units is 1/20. Once this unit has been taken, the probability of anything occurring in the second unit is 1/19. The "either-or" probability is obtained by adding the individual probabilities.

    I hope this helps. If not, repost your question in greater detail. Thanks for asking.

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    posted by PsyDAG

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