A Box Contains 2 Red Marbles And 8 Blue Ones

So i could pick that red marble or that red marble.

A box contains 2 red marbles and 8 blue ones. 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. A box contains 7 red marbles 5 blue marbles and 8 green marbles. So i could pick that green marble or that green marble. You could say there s 14 total marbles.

So this is all the possible outcomes. There s one blue marble. So there are going to be 14 minus 2 which is 12 non blue marbles. The following experiment is done a hundred times.

A bag contains 1 blue 2 green 3 yellow and 3 red marbles as shown. Explain and justify each step carefully. John picks up two marbles at a random from the the bag. What is the probability that it came from the first box.

Answer by robertb 5567 show source. A marble drawn at random from one of the boxes turns out to be blue. Well there s a couple ways to think about it. Another way to think about it is a red or green marble because the only other two colors we have are red and green.

These are clearly all yellow. There s two green marbles in the bag. There s two red marbles in the bag. The red box contains four red marbles and one blue marble and the blue box contains five blue marbles and three red marbles.

Draws are made at random with replacement. And then there s one blue marble in the bag. So how many non blue marbles are there. Mc011 2 jpg mc011 3 jpg mc011 4 jpg mc011 5 jpg.

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 98 blue ones. Asked by will on march 30 2019. A box contains 3 blue and 2 red marbles while another box contains 2 blue and 5 red marbles.