A Jar Contains Four Times As Many Red Marbles

Two marbles are drawn without replacement.

A jar contains four times as many red marbles.

A jar contains 125 marbles. A draw the tree diagram for the experiment. Given that 4 of the marbles are green 60 of the marbles are blue and the rest are red how many red marbles are in the jar 1 see answer lydy6625 is waiting for your help. What is the probability that the first marble picked at random is blue and that the second marble is green and that the third marble picked is yellow assuming that the marbles are put back into the jar after every time they are picked.

The ratio of red marbles to blue marbles in a jar is 2 to 5. T total number of marbles b number of blue marbles g number of green marbles r number of red marbles t 765 t b g r b 2 g 3b r 765 b b 2 3b 765 4 5b b 765 4 5 b 170 there are 170 blue marbles. And 4 blue marbles. B find probabilities for p bb p br p rb p ww p at least one red p exactly one red 3.

Add your answer and earn points. If there are 35 blue marbles in the jar how many red marbles are there. Solution for a jar contains 40 red marbles numbered 1 to 40 and 46 blue marbles numbered 1 to 46. A jar contains 2 red marbles 6 blue marbles 4 white marbles and 12 black marbles.

As a guide supposing there are 8 red marbles in a jar containing 40 marbles then the probability of choosing red is 8 40 or 1. Find the probability of not choosing a blue marble. A jar contains 3 yellow marbles 4 red marbles 10 green marbles. There are 55 marbles 25 of which are not red p getting a color other than red p 25 55 455 probability of this happening 3 times in a row is.

What is the ratio of white marbles to all marbles. There is 20 per cent probability of choosing red. A jar contains 4 black marbles and 3 red marbles. If a marble is drawn from the jar at random what is the probability that the marble will be white.

5 x7 35 2x7 14 red marbles is this right. The probability to randomly draw a marble is 20c1 the probability to draw a white marble from 10 white marbles is 10c1 thus the probability to draw a white marble out of 20 is. Two marbles are drawn without replacement from a jar containing 4 black and 6 white marbles. You randomly choose a marble from a jar.

Probability examples a jar contains 30 red marbles 12 yellow marbles 8 green marbles and 5 blue marbles what is the probability that you draw and replace marbles 3 times and you get no red marbles.