Since the box contains 16 marbles, seven of them white, then the probability of drawing one white marble is 7/16. If you replace the marble and draw again, the probability of drawing another white marble is still 7/16. The net probability of drawing two white marbles, while replacing the first, is 49/256.
If the two marbles are drawn without replacement, the probability is 16/33.
3/5 or .6
2/13
It is 1248/57120 = 13/595 = 0.0218 approx.
Probability of not blue is the probability of white. The probability of white is 11/(11+21) or 11/32.
There is a probability of 3 that it will be blue.
There are 13 marbles in total. The order is specified.P(1st is white and the 2ndis purple) = (7/13)(6/12) = (7/13)(1/2) = 7/26.
If the two marbles are drawn without replacement, the probability is 16/33.
3/5 or .6
it is 5
2/13
3/5
There are 8 marbles that aren't black, out of a total of 12 marbles, so the probability is 8/12 or 2/3.
It is 1248/57120 = 13/595 = 0.0218 approx.
It is (1/2)5 = 1/32
it would be red because the probability is 5/9
Probability of not blue is the probability of white. The probability of white is 11/(11+21) or 11/32.