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 an event cannot be

The probability of an impossible event is ____.

In a two children family, find the probability that there is at least one girl in a family.

Probability of sure event is _____.

Find the probability of getting at least one tail in 4 tosses of a coin.

The probability that an event A happens in one treat of an experiment is 0.4. Three independent treats of the experiment are performed. Find the probability that the event A happens atleast once?

If two coins are tossed, find the probability of the following events: Getting atleast one head

If two coins are tossed, find the probability of the following events: Getting atleast one head

If 2/11 Is the probability of an event, what is the probability of the event 'not A'.