Question

The list below shows all the possible outcomes for flipping four coins

Answer 1

11/16

Explanation:

First, count all outcomes to be placed as the denominator.

There are 16 outcomes.

?/16

Now, observe all 16 outcomes and count the ones with at least 2 heads in the outcome.

For example, HHHH and HHHT are included because they have 4 and 3 heads respectively.

Once you count, there should be 11 outcomes with at least 2 heads in them.

The answer is 11/16.

Hope this helped.