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 the expected value of the game?

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 - HT - TProbability 1/2

You lose 2 ways.

H - TT - HProbability 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.

Hello, your answer is: 1079, because remember, this equation represents
*800 - (-279)
so, you need to use the method of KCC, or, k=keep, c=change, c=change.
you keep the 800 positive, switch the (-) subtraction sign to a (+) addition sign, and also, make the (-279) a positive 279. so you turn out with:
*800 + 279, which equals = 1079
*youre welcome :)