4.
a coin is tossed 4 times. what is the probability of getting exactly 3 heads?

A coin is tossed 4 times. So the sample space is {, HHHT, HHTT, HTTT, , TTTH, TTHH, THHH, HTHT, THTH, HTHH, HHTH, HTTH, THHT, THTT, TTHT}

There are 16 sample points. This can be found out by knowing how many objects(or times the same object) is tossed/rolled(for a dice). Sample points = (Outcomes)^no. Of times

16 = 2^4

The answer is 4/16 = 1/4

Hope this helps!

mental cunning

explanation:

he is often referred to as a man of twists and turns