A coin is biased so that the head is 3 times

JEE MAIN 2023

13-4-2023 S1

Question

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

Select the correct option:

21/16

81/64

15/16

37/16

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

Question Tags

JEE Main

Mathematics

Medium

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