A Box Contains 7 Large Red Marbles

A draw the tree diagram for the experiment.

A box contains 7 large red marbles.

If a marble is drawn at random what is the probability that it is yellow given that is one of the large marbles. If a marble is drawn at random what is the probability that is yellow given that it is one of the large marbles answer by checkley77 12844 show source. I think this is one of those p a b type questions but i m not sure and i don t know what a is or what b is. Part 1 out of 2 a.

If a marble is drawn at random what is the probability that it is yellow given that it is one of the large marbles. Selecting 2 black marbles. Find the probability that the first two marbles selected are not red and the last marble is red. A box contains 2 blue marbles and 7 red marbles and two marbles are drawn with out replacement.

The probability of not getting a red marble is. Give answer as a simplified fraction. Answer by ikleyn 31753 show source. Determine the probabilities of the events in the following.

Asked by kandace on april 19 2011. A box contains 2 purple marbles 2 blue marbles 3 green marbles and 5 red marbles. John picks up two marbles at a random from the 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 bag contains 5 red marbles 3 green marbles 2 purple marbles 2 orange marbles and 1 blue marble. Felix has a bag of 6 yellow marbles and 6 green marbles. A jar contains 4 black marbles and 3 red marbles. Purple blue green red.

A box contains 7 red marbles 5 blue marbles and 8 green marbles. A box contains 5 green marbles 7 blue marbles and 9 red marbles. He picks a marble and then puts it back 26 times. Two marbles are drawn without replacement from a jar containing 4 black and 6 white marbles.

Two marbles are drawn without replacement. B find probabilities for p bb p br p rb p ww p at least one red p exactly one red 3. Three marbles are selected at random from the box one at a time without replacement. The results are shown in the table.

A box contains 7 black 3 red and 5 purple marbles. A box contains 7 large red marbles 5 large yellow marbles 3 small red marbels and 5 small yellow marbles. Consider the two stage experiment of randomly selecting a marble from the box not replacing it and then selecting a second marble.