An unbiased coin is tossed thrice. Find the p | vedclass

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(C) When an unbiased coin is tossed thrice,the total number of possible outcomes is $2^3 = 8$.The sample space $S$ is given by: $S = \{HHH, HHT, HTH,

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$\frac{1}{2}$

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(C) When an unbiased coin is tossed thrice,the total number of possible outcomes is $2^3 = 8$.The sample space $S$ is given by: $S = \{HHH, HHT, HTH, THH, HTT, THT, TTH, TTT\}$.Event $B$ is defined as getting at least $2$ heads.The favorable outcomes for event $B$ are: $\{HHH, HHT, HTH, THH\}$.The number of favorable outcomes is $n(B) = 4$.The probability of event $B$ is $P(B) = \frac{n(B)}{n(S)} = \frac{4}{8} = \frac{1}{2}$.

An unbiased coin is tossed thrice. Find the probability of the following event:
$B:$ at least $2$ heads are received.

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An unbiased coin is tossed thrice. Find the probability of the following event:$B:$ at least $2$ heads are received.