Question

An aircraft is used to fire at a target. It will be successful if 2 or more bombs hit the target. If the aircraft fires 3 bombs and the probability of the bomb hitting the target is 0.4, then what is the probability that the target is hit? ​

Answer 1

Answer:

We have, the probability that the bomb stricks the target is

Let n be the number of boombs which should be dropped to ensure

chance or better of completely destroying the target. Then the probability that out of n bombs at least two bombs strike the target is greater than

Let X denote the number of bombs striking the target. Then <br>

<br> We should have <br>

<br>

<br>

<br>

<br>

<br>

<br> Thus, the minimum number of