Haryana Police Constable Model Paper 3

Given:
A coin is tossed 3 times.
Formula used:
P (getting all heads) =

(Number‌of‌favorable‌outcomes)

(Total‌number‌ofoutcomes)

Calculation:
Total possible outcomes
⇒ (TTT), (TTH), (THT), (HTT), (THH), (HTH), (HHT), (HHH)
The total number of outcomes = 8.
Number of favorable outcomes = (HHH)
P(getting‌all‌heads)=

(Number‌of‌favorable‌outcomes)

(Total‌number‌if‌outcomes)

⇒ P (getting all heads) =

1

8

∴ The probability of getting all heads are

1

8

.