The tree diagram below shows all of the possible outcomes for flipping three coins.
what is the probability that at least two of the coins will be tails?
1/8 3/8 1/2 3/4

Option C is correct.

Step-by-step explanation:

From given tree Diagram.

Total No of Outcome = 8

Let E be the event in which atleast 2 coins shoes tails.

Favorable outcome = { (H,T,T) , (T,H,T) , (T,T,H) , (T,T,T) }

⇒ No. of favorable outcome = 4

Therefore, Option C is correct.