The probability that certain electronic component fail, when first used is 0.10. If it does not fail immediately, then the probability that it lasts for one year is 0.99. What is the probability that a new component will last for one year?

The operates if all of its three components function.The probability that the first component fails during the year is 0.14, the second component fails is 0.10 and the third component fails is 0.05. What is the probability that the machine will fail during the year?

The probability that certain type of component will survive a check test is 0.5. Find the probability that exactly tow of the next four componets will suvive.

A police man fires four bullets on a dacoit. The probability that the dacoit will be killed by one bullet is 0.6. What is the probability that the dacoit is still alive?

The probability that a certain kind of component will survive a check test is 0.5. Find the probability that exactly two of the next four components tested will survive.

The probability that an event will fail to happen is 0.05. The probability that the event will take place on 4 consecutive occasions is

A soldier fires three bullets on enemy. The probability that the enemy will be killed by one bullet is 0.7 What is the probability that the enemy is still alive ?

The probability that a certain kind of component will survive a check test is 0.6 Find the probability that exactly 2 of the next 4 rested componentws suvive.

The probability that an event does not happen in one trial is 0.8. The probability that the even happens atmost once in three trials is

The probabilities that on a certain day the two trains from Calcutta and Mumbai arrive on time at Delhi are 0.93 and 0.89 respectively. The probability that both trains arrive on time is 0.87. Then the probability that at least one train is on time is ___________.