Discussion
What is the probability of getting all heads or all tails, when three coins are tossed simultaneously ?
Answer: C
When three coins are tossed simultaneously, there are 8 possible outcomes, which are (HHH), (HHT), (HTH), (THH), (HTT), (THT), (TTH), (TTT), where H is represents the head and T represents the tail.
Favorable outcomes of getting all heads or all tails are HHH and TTT.
We know that, Probability of an event E, P (E) =Number of favorable outcomes /Total number of outcomes
Hence, the required probability = 2/8 = 1/4
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