Probablity

JEE Mains Coaching › Algebra questions › Probablity

A player tosses a coin and is to score one point for every head and one point for every tal.He is to play on until his score reaches or passes n.If P_n is hte chance of getting exactly n,show that P_n=(P_n-1+P_n-2)/2 .
Also find value of P_n

#Mathematics #Algebra

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6 Answers

62

Lokesh Verma ·2009-09-09 00:59:06

Eureka have you typed the question correctly?

Read it once more..

Thess kind of questions are direcly to use reccurence relationship.. But I think you have made some typo

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24

eureka123 ·2009-09-09 06:32:51

No sir question is rite.

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62

Lokesh Verma ·2009-09-09 06:46:17

Tell me the source of the question...

Somehow the player is getting 1 point everytime.. whetehr it is head or tail!

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eureka123 ·2009-09-09 06:51:58

I dont know the source

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62

Lokesh Verma ·2009-09-09 06:54:37

I dont know!

I mean i am short of ideas on this one.. either i am not reading this question correctly or this question is wrong!

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eureka123 ·2009-09-09 06:56:13

same feeling here....thanx for confirmation

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Your Answer

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