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MakcuM [25]
3 years ago
15

You are challenged to a lucky draw game. If you draw a face card (K, Q, J) from a standard deck of cards, you earn 10 points. If

you draw any other card, you lose 2 points. What is the expected value that you can get if you draw another card?
Mathematics
1 answer:
Vilka [71]3 years ago
5 0
To problem wants to compute the probability of the expected value that could be earn if you would draw again another card. So base on the fact that if draw a face card of K,Q,J from a standard deck correctly you will earn 10 point in just one draw, but loose 2 points if you another card, the probability that you would draw correct card in just one draw is 30.77%, so the possible value earn you have 2 points only 
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