a coin is tossed 100 times and tail is obtained 52 times now, if a coin is tossed at random, what is the probability of getting a head?

Dear Student,
probability of getting an outcome = $favourable number of outcomes÷total number of outcomes$
If a coin is tossed at random the sample space would be:$(head,tail)$
So in this case, favourable number of outcome = 1
and, total number of outcomes = 2
$\Rightarrow$probability of getting a head = $1/2$

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