Q4 of 11 Page 215

A coin is tossed three times. Find the probability of getting all heads or all tails.

The outcomes on tossing a coin three times are:


HHH, HHT, HTH, HTT, THH, THT, TTH, TTT


No. of favorable outcomes = 2 (HHH,TTT)


No. of total outcomes = 8


As we know,


Probability =


⇒ Probability (Getting all heads or all tails)


=


=


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