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Counting bitstrings

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How many bitstrings of length 10 are there that contain 5(or more) consecutive 0's or contain 5(or more) consecutive 1's? Justify your answer.

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Solution Summary

This solution provides one example of counting the number of bitstrings of given characteristics.

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"How many bitstrings of length 10 are there that contain 5(or more) consecutive 0's or contain 5(or more) consecutive 1's?"

First consider the sum rule:
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If there are n1 ways to do task 1, and n2 ways to do task 2
If these tasks can be done at the same time, ...

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