Question

4.
A coin is tossed 4 times. What is the probability of getting exactly 3 heads?

Answer 1

A coin is tossed 4 times. So the sample space is {HHHH, HHHT, HHTT, HTTT, TTTT, 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!

Answer 2

Answer:1/2, 50%, 2/4

Step-by-step explanation:a coin has two sides and your tossing it 4 times so you just divide it by 2 and you get 2