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player tosses two fair coinsHe wins rs 2 if 2 heads occur and rs 1 if 1 head occurs. On the other handhe loses rs 3 if no heads occur. if the player plays 100 times.then the amount he wins______________(RS).

in Mathematical Logic by Active (3.3k points) | 100 views
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is the answer rs 25?
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yes @aditya333 ! can you please explain in detail manner. step by step

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for each experiment there are four possibilities :- {HH, HT,TH,TT}

so probability of getting +2 is 1/4 ,

probability of +1 is 1/2

probability of -3 is 1/4

so average amount in each experiment is (1/4)*2 + (1/2)*1 -(1/4)*3    =    1/4

so average amount for 100 trials = 100*(1/4)= rs 25
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