An urn contains 2 red and 2 green marbles. We pick a marble, record its color, and replace it. We repeat this procedure a second and a third time. The probability distribution for the number of red marbles is given below. For this distribution, the probability of 2 or more red marbles is given by:
A)1/2.
B)3/8.
C)6/8.
D)1/4.

Question

An urn contains 2 red and 2 green marbles. We pick a marble, record its color, and replace it. We repeat this procedure a second and a third time. The probability distribution for the number of red marbles is given below.  For this distribution, the probability of 2 or more red marbles is given by:
A)1/2. 
B)3/8. 
C)6/8. 
D)1/4.

Quizplus · Accepted Answer

The Answer of An urn contains 2 red and 2 green marbles. We pick a marble, record its color, and replace it. We repeat this procedure a second and a third time. The probability distribution for the number of red marbles is given below.  For this distribution, the probability of 2 or more red marbles is given by:
A)1/2. 
B)3/8. 
C)6/8. 
D)1/4.

An Urn Contains 2 Red and 2 Green Marbles