The probability of happeining an event A in one trial is `0.4.` Find the probability that the event A happens at least once in three independent trials.

The probability of happening an event A in one trial is 0.4. Find the probability that the event A happens at least one in three independent trials.

The probability of happening an event A in one trial is 0.4. Find the probability that the event A happens at least one in three independent trials.

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

The probability of happening of an event is 3/5 . Find the probability of not happening the event.

The probability of happening of an event in a trial is 0.5. The probability of happening of the event atlest once if the experiment is repeated 3 times is

What is the probability of a sure event?

Probability of happening of an event in an experiment is 0.4 . The probability of happening of the event atleast once , if the experiment is repeated 3 times under similar condition is

If the probability of happening of an event A is 0.46. What will be the probability of not happening of the event A ?

Write the probability of a surve event.

Define probability of an event.