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January 30, 2015

January 30, 2015

Posted by **khushboo** on Tuesday, May 28, 2013 at 3:25am.

- math -
**Reiny**, Tuesday, May 28, 2013 at 8:49amprob(choose math) = .65

prob(not to choose math) = .35

prob(at least 1 of 3 choosing math)

= 1 - prob(nobody choosing math)

= 1 - C(3,0) (.35)^3

= 1 - .042875

= appr .957

or

prob(1 choosing math) + prob(2 choosing math) + prob(3 choosing math)

= .957

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