hope it helps u to get your abswer and me to be ranked as brainliest:)))
To calculate expected value,
We can add up the probability of all possible events.
The 2 possible events are either winning $50 or losing the prize, which is $ - 50
Expected value =
50 x 40 % + (-50) x 60%
= $-10
So the answer is $-10
The correct answer to your question is 252 children
Answer:
3d+2
Step-by-step explanation:
Because he is getting 3x the amount of his wages it would be 3xd, simplified to 3d. Then add 2.