idanheat idanheat

26-05-2018
Mathematics

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Each member of a nine-person committee attends any given meeting of the committee with probability 1/2. What is the probability that at least two-thirds of the membership of the committee will be present at its next meeting?

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sqdancefan sqdancefan

26-05-2018

A suitable statistics calculator gives the probability that 6 or more show up as being about ...
0.2539

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i hope someone can help me here please don't answer nonsense!

Factorize:a⁴-a³+2a²