Step-by-step explanation:
With each draw, the probability of selecting a green marble is 2/3 and the probability of selecting a yellow marble is 1/3.
To pick two of the the same color, they can either pick green twice or yellow twice.
P = (2/3)(2/3) + (1/3)(1/3)
P = 5/9
To pick two different colors, they can either pick green first then yellow, or yellow first then green.
P = (2/3)(1/3) + (1/3)(2/3)
P = 4/9
Expected value for Derek is:
D = (5/9)(-1) + (4/9)(1)
D = -1/9
The expected value for Mia is:
M = (5/9)(1) + (4/9)(-1)
M = 1/9
Answer:
C. P(E) = 0.9
Step-by-step explanation:
If E needs to be greater than D, then you have two options. 1.5 and 0.9. Since D is 0.5, I think that the most reasonable answer is 0.9.
[If this is wrong, the you know your answer is B. P(E) = 1.5]
Hey there!
The answer is 
We will start by forming an equation to solve this.
So we are starting with a number, 
, then doubling it and adding 
, which gives us 25.
So:
Now we solve this equation:
Have a super awesome day!
The answer is 50, just divide 10 and 2, you get 5 and multiply the 5 with the 10
