The answer should be jet streams. :)
0.9 and 0.07
hope it helps
Answer:
b. $28
Step-by-step explanation:
We have these following probabilities:
0.4 = 40% probability of $40
0.2 = 20% probability of $30
0.2 = 20% probability of $20
0.2 = 20% probability of $10
The expected value is:
We multiply each value by its probability. So

So the correct answer is:
b. $28
Answer:
B would be the answer for this question.
Step-by-step explanation: