Another way to think about it is a red or green marble because the only other two colors we have are red and green.
A box contains 2 red marbles and 8 blue ones.
Mc011 2 jpg mc011 3 jpg mc011 4 jpg mc011 5 jpg.
And then there s one blue marble in the bag.
The following experiment is done a hundred times.
So there are going to be 14 minus 2 which is 12 non blue marbles.
A box contains 2 red marbles and 98 blue ones.
So i could pick that red marble or that red marble.
A box contains 7 red marbles 5 blue marbles and 8 green marbles.
What is the probability that it came from the first box.
These are clearly all yellow.
Well there s a couple ways to think about it.
Mc011 1 jpg what is the probability of drawing a red marble out of the bag without looking.
A box contains 3 blue and 2 red marbles while another box contains 2 blue and 5 red marbles.
John picks up two marbles at a random from the the bag.
A marble is randomly drawn from one of the boxes its color.
So this is all the possible outcomes.
There s two green marbles in the bag.
A marble drawn at random from one of the boxes turns out to be blue.
There s two red marbles in the bag.
A bag contains 1 blue 2 green 3 yellow and 3 red marbles as shown.
What s the fewest number of draws i have to make in order to have better than a 70 chance for a red marble to appear at least once.
The red box contains four red marbles and one blue marble and the blue box contains five blue marbles and three red marbles.
There are two boxes.
Explain and justify each step carefully.
What is the probability that john has picked a pair of matching marbles a 1 19 b 15 90 c 7 19 d 59 190 e 2 190.
Draws are made at random with replacement.
Asked by will on march 30 2019.
So i could pick that green marble or that green marble.
You could say there s 14 total marbles.