Statistics and Probability: JEE Main 2023 Mathematics question

JEE Main 2023 · 13 Apr, Morning shift · Q5004

JEE Main 202313 Apr, Morning shiftMathematicsMediumStatistics and Probability258× since 2002

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 :

JEE Main 2023 · 13 Apr, Morning shift · Q5004

JEE Main 202313 Apr, Morning shiftMathematicsMediumStatistics and Probability258× since 2002

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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