Blue Andred Marbles Bag Problem

The sample space for the second event is then 19 marbles instead of 20 marbles.

Blue andred marbles bag problem.

The number of blue marbles is 1 less than 3 times the number of red marbles. A bag contains blue marbles and red marbles 71 in total. John took out 5 blue marbles and then there were twice as many red marbles as blue marbles in the bag. How many red marbles are there in the bag.

A bag has 3 blue marbles and 4 red marbles. And so this is sometimes the event in question right over here is picking the yellow marble. You reach into the bag and draw a marble and then draw another marble without replacing the first one. This is called probability without replacement or dependent probability.

No packages or subscriptions pay only for the time you need. So frac 4 7 of the marbles are now red. 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. You draw a marble at random without replacement until the first blue marble is drawn.

So simple multiplication will give the desired probability. 2 making a table 6 rp 3a 6 ee 7 we are given that for every three blue marbles in the bag there are two red 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. Find an online tutor now choose an expert and meet online.

What fraction of the marbles in the bag are blue. If the first marble drawn was a red marble what is the chance that the second draw is a blue marble. What is the chance that the first draw is a red marble. So they say the probability i ll just say p for probability.

Get a free answer to a quick problem. Let x the number of draws. Most questions answered within 4 hours. Let x red marbles.

Initially there were the same number of blue marbles and red marbles in a bag. A bag has 16 blue 20 red and 24 green marbles. 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. A bag contains 4 red marbles and 2 blue marbles.

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. The probability of picking a yellow marble. Answer by fombitz 32378 show source.