Answer:
answer C
Step-by-step explanation:
ive done it before
Answer:
3.9
Step-by-step explanation:
Given the data:
Payout ($) (x) : 0 2 4 8 10
Probability p(x) : 0.35 0.2 0.1 0.2 0.15
The expected winning ; E(X) = Σ(x * p(x))
Σ(x * p(x)) = (0*0.35)+(2*0.2)+(4*0.1)+(8*0.2)+(10*0.15)
= 0 + 0.4 + 0.4 + 1.6 + 1.5
= 3.9
If you draw only 25 balls, you could draw the 25 odd-numbered balls. However, there will then be no odd-numbered balls left, so when you draw two more you will be guaranteed to get two even-numbered balls. Thus, the minimum is 25+2=27 balls.
Answer:
40
Step-by-step explanation:
Answer:
Hi there!
The answer to this question is (B) 4
Step-by-step explanation:
Using the order of operations, you first solve what it is inside of the parenthesis, which in this case is (4-2), that equals to 2.
then you need to figure out what multiply by 2 gets 8. Out of all the answer choice (B) fits perfectly.
