Blue Andred Marbles Bag Problem

You reach into the bag and draw a marble and then draw another marble without replacing the first one.

Blue andred marbles bag problem.

A bag contains blue marbles and red marbles 71 in total. Most questions answered within 4 hours. A bag has 3 blue marbles and 4 red marbles. How many red marbles are there in the bag.

Get a free answer to a quick problem. What is the chance that the first draw is a red marble. What fraction of the marbles in the bag are blue. The sample space for the second event is then 19 marbles instead of 20 marbles.

How many blue marbles are there. John took out 5 blue marbles and then there were twice as many red marbles as blue marbles in the bag. Since the first marble is replaced before the second marble is drawn the colour of the second marble is independent of the colour of the first marble. So frac 4 7 of the marbles are now red.

Let x red marbles. You draw a marble at random without replacement until the first blue marble is drawn. The probability of picking a yellow marble. With our new ratio of 3 4 for blue marbles to red marbles this means that 4 out of every 7 marbles in the bag are red.

A if you repeated this experiment a very large number of times on average how many draws would you make before a blue marble was drawn. And so this is sometimes the event in question right over here is picking the yellow marble. If the first marble drawn was a red marble what is the chance that the second draw is a blue marble. A bag contains 4 red marbles and 2 blue marbles.

For example a marble may be taken from a bag with 20 marbles and then a second marble is taken without replacing the first marble. No packages or subscriptions pay only for the time you need. So simple multiplication will give the desired probability. Find the probability of pulling a yellow marble from a bag with 3 yellow 2 red 2 green and 1 blue i m assuming marbles.

Answer by fombitz 32378 show source. Find an online tutor now choose an expert and meet online. Initially blue marbles red marbles x then john. A bag has 16 blue 20 red and 24 green marbles.

This is called probability without replacement or dependent probability. So they say the probability i ll just say p for probability. The number of blue marbles is 1 less than 3 times the number of red marbles.