Mc011 1 jpg what is the probability of drawing a red marble out of the bag without looking.
A box contains 2 red marbles and 8 blue ones.
A marble is randomly drawn from one of the boxes its color.
Draws are made at random with replacement.
You could say there s 14 total marbles.
There s two red marbles in the bag.
A marble drawn at random from one of the boxes turns out to be blue.
There are two boxes.
Another way to think about it is a red or green marble because the only other two colors we have are red and green.
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.
There s one blue marble.
Well there s a couple ways to think about it.
There s two green marbles in the bag.
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.
A box contains 2 red marbles and 98 blue ones.
So there are going to be 14 minus 2 which is 12 non blue marbles.
A bag contains 1 blue 2 green 3 yellow and 3 red marbles as shown.
A box contains 3 blue and 2 red marbles while another box contains 2 blue and 5 red marbles.
Answer by robertb 5567 show source.
And then there s one blue marble in the bag.
These are clearly all yellow.
What is the probability that it came from the first box.
The red box contains four red marbles and one blue marble and the blue box contains five blue marbles and three red marbles.
Mc011 2 jpg mc011 3 jpg mc011 4 jpg mc011 5 jpg.
A box contains 7 red marbles 5 blue marbles and 8 green marbles.
Explain and justify each step carefully.
John picks up two marbles at a random from the the bag.
So this is all the possible outcomes.
Asked by will on march 30 2019.
So i could pick that red marble or that red marble.