Question

Two coins are tossed simultaneously. A person receives Rs. 8 for each head and loses Rs. 10 for each tail. Find the expected value of the amount gained by him.
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Answer 1

Answer:

samplespace=[hh,ht,th,tt]

moneyreceivedwhenHH=16

moneyreceivedwhenHT=8−10=−2

moneyreceivedwhenTH=−10+8=−2

moneyreceivedwhenTT=−10−10=−20

averagemoneygained=

4

16−2−2−20

=

4

−8

=−2

Answer 2

Answer:

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