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A bag contains 5 yellow, 6 red, and 4 green marbles. Two marbles are drawn. The first is replaced before the second is drawn. A random variable assigns the number of green marbles to each outcome. Calculate the expected value of the random variable.

a.
0.76
c.
0.27
b.
1.07
d.
0.53

1 Answer

4 votes

Answer: d.) 0.53

Step-by-step explanation: 4( total green marbles) divided by 15 (all marbles) =.266 x 2= 0.53

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