A coin is biased so that head is 3 times as likely to occur as tail.This coin tossed | Probability
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- เผยแพร่เมื่อ 10 ก.พ. 2025
- 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:
A. 81/64
B. 37/16
C. 21/16
D. 15/16
