Binomial Distribution

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P( ≤ X ≤ ) =



Summary
If X ~ B(n, p), then P(X = r) = nCr pr qn-r


Examples of Binomial Distributions:

No. of heads obtained from 5 throws of a coin
No. of sixes obtained from 5 throws of a die
No. of rotten apples out of 20
No. of defective articles out of 20
No. of people out of 20 with birthdays in January
No. of people out of 100 who wears glasses