There Are R Red Marbles Blue Marbles In A Bag

A bag of marbles consists entirely of red blue and green marbles.

There are r red marbles blue marbles in a bag.

What is the probability that the first will be red and the second will be blue. There is an equal number of red and blue marbles h0 or. These are clearly all yellow. In order to reduce the number of variables to two and limit the number of equations in the system to two we can subsitute b r 88 into r b t so that it becomes r r 88 t and then becomes 2r 88 t.

Finally since there are only red and blue marbles in the bag we can say that r b t. There are 5 red marbles 15 blue marbles and 5 green marbles in a bag. The ratio of red to blue to green marbles in the bag is 2 5 7. There are 5 red marbles 7 green marbles 4 black marbles and 8 blue marbles in a bag suppose you select one marble at random.

There s two red marbles in the bag. There s two green marbles in the bag. Follow report by ashna19122005 22 03 2020 log in to add a comment. A bag contains 100 marbles.

Each marble is either red or blue. You reach in and randomly draw a marble replace it and draw another marble. 60 of the marbles are blue ha your task is to guess which of the two conditions is in fact true. So i could pick that green marble or that green marble.

So this is all the possible outcomes. P red ask for details. So i could pick that red marble or that red marble. There are 20 blue marbles in the bag.

One of two conditions exists with respect to the number of red and blue marbles. Find each probability a. How many marbles total are in the bag.