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Klio2033 [76]
3 years ago
11

Two coins are flipped. You win $3 if either two heads or two tails turn up; you lose $4 if a head and a rail turn up. What is th

e expected value of the game?

Mathematics
1 answer:
Lyrx [107]3 years ago
4 0

Answer:

Step-by-step explanation:

It's too bad about this problem. It's a fair game if you get paid the same amount that you have to pay if you lose.

You win 2 ways

  • H - H
  • T - T
  • Probability 1/2

You lose 2 ways.

  • H - T
  • T - H
  • Probability 1/2

Expectation

E = 1/2 * 3 - 1/2 * 4

E = 1.5 - 2

E = -0.5

Which means that you should expect to lose 0.5 dollars every time you play this dreadful game.

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David has 12 pears.

Step-by-step explanation:

4 + 9 = 13

39 / 13 = 3

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3 x 9 = 27

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2 years ago
Three is added to a number, and then the sum is multiplied by 4. The result is 16. Find the number.
pentagon [3]
x-\ number\\\\
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