The probability that a woman can hit a target is She tries 4 times The probability that she will hit...........

Quantitative Aptitude (CDS) Probability

The probability that a woman can hit a target is ?. She tries 4 times. The probability that she will hit the target at least 2 times is?

8/9

7/9

5/9

1/9

Since the probability that a woman can hit a target =?

Thus probability that she can not hit a target =?

Now the required probability that she will hit the target at least 2 times is-

=4C2 (?)^2 (?)^2 +4C3 (?)^3 (?)^1 +4C4(?)^4 (?)^0

=24/81 +32/81 +16/81

=72/81

=8/9

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