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JEE Main 2023 (Online) 13th April Morning Shift

MCQ+4 / -12023

A coin is biased so that the head is 3 times as likely to occur as tail. This coin is tossed until a head or three tails occur. If \(\mathrm{X}\) denotes the number of tosses of the coin, then the mean of \(\mathrm{X}\) is :

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