The expected value is just the weighted average of how much one ticket wins. To calculate it, we need to find the probabilities of winning each dollar amount, multiply each probability with it's respective dollar amount, then find the sum.
Let's call the winnings from one ticket X:
P(X=30) = 4000/2000000 = 0.002
P(X=800) = 500/2000000 = 0.00025
P(X=1200000) = 1/2000000 = 0.0000005
E(X) = 30*P(X=30) + 800*P(X=800) + 1200000*P(X=1200000) = 0.06 + 0.2 + 0.6 = 0.86
The answer is $0.86
I believe it’s C sorry if I’m wrong
Jane walked a quarter of the distance she walked on Monday, so that means she walked 4 times less hoped this helped. :]
Answer:
8/37
Step-by-step explanation:
First subtract 450 - 370.
450 - 370 = 80
Then put it into fraction form where the increase is the numerator and the cost from last year is the denominator.
80/370
Then, simply the fraction (if possible).
8/37
