In a precision bombing attack, there is a `50%` chance that any one bomb will strick the target. Two direct hits are required to destroy the target completely. The number of bombs which should be dropped to give a `99%` chance or better of completely destroying the target can be

In a precision bombing attack, there is a 50% chance that any one bomb will strike the target. Two direct hits are required to destory the target completely. The number of bombs which should be dropped to give a 99% chance or better of completely destroying the target can be

In a bombing attack , there is 50% chance that a bomb will hit target . At least two independent hits are required to destroy the target completely. Then the minimum number of bombs, that must be dropped to ensure that there is at least 90% chance of completely destroying the target , is ________

The probability of a bomb hitting a bridge is (2)/(3) . Two direct hits are needed to destroy the bridge. The minimum number of bombs required such that the probability of bridge being destroyed is greater than (3)/(4) , is

The probability of a bomb hitting a bridge is 1//2 and two direct hits are needed to destroy it . The least number of bombs required so that the probability of the bridge being destroyed is greater then 0.9 is

The probability of a bomb hitting a bridge is (2)/(3) . Two direct hits are needed to destroy the bridge. The minimum number of bombs required such that the probability of bridge being destroyed is greater than (3)/(4) , is

The probability that a missile hits a target successfully is 0.75 . In order to destroy the target completely , at least three successful hits are required . Then the minimum number of missiles that have to be fired so that the probability of completely destroying teh target is NOT less than 0.95 , is ..........

The probability of a bomb hitting a bridge is 1/2 and two direct hits are needed to destroy it. The least number of bombs required so that the probability of the bridge being destroyed is greater than 0.9, is :

The probability of a bomb hitting a bridge is 1/2 and two direct hits are needed to destroy it. The least number of bombs required so that the probability of the bridge being destroyed is greater than 0.9, is :

The probability of a bomb hitting a target is 0.2. Two direct hits are necessary to destroy a bridge. If six bombs are aimed at the bridge, find the probability that the bridge is destroyed.