Probability 4 Question 22
22. Three players, and , toss a coin cyclically in that order (i.e. ) till a head shows. Let be the probability that the coin shows a head. Let and be, respectively, the probabilities that and gets the first head. Prove that . Determine and (in terms of ).
Show Answer
Answer:
Correct Answer: 22.
Solution:
- Let
probability of getting the tail. We have,
Also,
Again, we have
Also,