Question

If 'Tail' appears consecutively in the first Ten tosses of a fair coin, what is the probability of 'Head' appearing in the eleventh toss?

1. 1/2
2. 2/3
3. 7/8
4. 1/8

Answer 1

Correct Answer - Option 1 : 1/2

Given:

Tails appear consecutively in the first Ten tosses of a fair coin.

Formula Used:

Probability = number of favourable outcomes/total number of outcomes 

Calculation: 

As each time coin is tossed is the independent event.

when the coin is flipped the eleventh time, there is a chance of getting head or tail.

⇒ The chance of getting head = chance of getting tail 

∴ The probability of getting 'Head' on the eleventh toss is 1/2