The probability that mary will win a game is 0.05, so the probability that she will not win is 0.95. if mary wins, she will be given $80; if she loses, she must pay $4. if x = amount of money mary wins (or loses), what is the expected value of x? (round your answer to the nearest cent.)

Step-by-step explanation:

we know that

The expected value is the sum of: [(each of the possible outcomes) × (the probability of the outcome occurring)]

In this problem we have

the answer is 150.6

step-by-step explanation:

you multiply .02 by 30 and get .6.

and then you multiply 5.00 by 30 and get 150.

hope this !