A Box Contains 20 Red Marbles And 30 Blue Marbles

Find the probability of first selecting a blue then a green marble.

A box contains 20 red marbles and 30 blue marbles.

B find probabilities for p bb p br p rb p ww p at least one red p exactly one red 3. The ratio of 4 blue marbles to 6 white marbles can be said as 4 6 4 to 6 or 4 6. A two marbles are selected with replacement. A jar contains 20 marbles.

A second box contains 10 white marbles and 40 black marbles. Solving part a to solve part a of this problem first considered the. B two marbles are selected without replacement. This can then be simplified to 2 3 by a factor of 2.

Estimate the probability of drawing 1 yellow marble from a box that contains 60 red marbles 120 blue marbles 30 green marbles and 90 yellow marbles. A box contains 47 red marbles 56 white marbles and 59 blue marbles. If a marble is randomly selected from the box what is the probability that it is not white. Find the probability that both marbles are red.

A draw the tree diagram for the experiment. 4 red 6 white and 10 blue. Two marbles are drawn without replacement from a jar containing 4 black and 6 white marbles. 6 a box contains 30 marbles.

Two marbles are drawn without replacement. A box contains 40 red and blue marbles. Express your answer as a simplified fraction or a decimal rounded to four decimal places. If you choose one marble from each box without looking what is the probability that you get a blue marble and a black marble.

3 10 0 3 explanation. A jar contains 4 black marbles and 3 red marbles. If you remove marbles one at a time randomly what is the minimum number that must be removed to be certain that you have at least 2 marbles of each colour. A box contains 20 red marbles and 30 blue marbles.

4 number of possible events number of total marbles 20 30 10 40 100 5 probability 40 100 2 5 0 4 question 2. If a marble is drawn at random the probability of picking a blue marble is 38. Ansh takes out one red and nine blue marbles and then draws a marble at random the blue marbles are n p e totalmarbles 38 40 15 if he removes 1 blue and 9 blue marble then blue marbles are 15 9 6 and total marbles are 40 10 30 hence probability of finding.