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PROBABILITY BY AVK

1. 0< p < 1

2. Without replacement use combination. nCr = n! /r! (n-r)!

nCo = 1 nCn = 1 0! = 1 1! = 1

3. Atleast one means p(x>1) = 1 – p(x

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12.  C

13.  CONTRADICTION = P(A) P(not A)

USE 1-p(a) concept

use conditional prob.

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