the answer is C................................
Answer:
The answer is 12
If you look at the set of data 12 is shown the most or there more then once when the others aren't
-6 is the answer since 6*-1 is -6
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