JEE Mains 13-Apr-2023 Shift 1 Solved Paper

Section: Mathematics

Question : 5 of 90

Marks: +1, -0

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 X denotes the number of tosses of the coin, then the mean of X is-

[13-Apr-2023 shift 1]

‌
21
16
‌
15
16
‌
81
64
‌
37
16

Validate

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