Question 24 (Textile Engineering & Fibre Science)
A fair coin is tossed 4 times. What is the probability of getting heads 3 times ?
| (A) |  |
| (B) |  |
| (C) |  |
| (D) |  |
[Show Answer]
The coin tossed 4 times.
Total number of favourable outcomes=(H,H,H,T),(H,T,H,H),(T,H,H,H),(H,H,T,H)=4
Total number of outcomes=
=16
Probability of getting 3 heads
The required probability=4/16
The required probability=1/4 (Ans)
Option B is correct.