Question

A box contains 6 green marbles, 2 blue marbles and 2 Red marbles. what is the probability of getting a non-green marble.​

Answer 1

Answer:

there are a total of 13 marbles. The probability of the first marble being drawn being a red is 6/13. In the bag now are a total of 12 marbles of which 5 are red. The probability that the next marble is a red is 5/12.

The probability of the first two marbles drawn being red is 6/13 x5/12 =30/156

= 0.192307692307 or nearest 1000th 0.192