Question

In Q.No. 7, what is the probability of getting at least two heads?

Answer 1

The total number of trials is 200.

Let A be the event of getting atleast two heads.

The number of times A happens is.

Remember the empirical or experimental or observed frequency approach to probability.

If n be the total number of trials of an experiment and A is an event associated to it such that A happens in m-trials. Then the empirical probability of happening of event A is denoted byand is given by

Therefore, we have