Blue Andred Marbles Bag Problem

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.

Blue andred marbles bag problem.

Answer by fombitz 32378 show source. 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. What fraction of the marbles in the bag are blue. The number of blue marbles is 1 less than 3 times the number of red marbles.

Let x red marbles. 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. The sample space for the second event is then 19 marbles instead of 20 marbles. This is called probability without replacement or dependent probability.

The probability of picking a yellow marble. A bag contains 4 red marbles and 2 blue marbles. So they say the probability i ll just say p for probability. Most questions answered within 4 hours.

A bag contains blue marbles and red marbles 71 in total. You draw a marble at random without replacement until the first blue marble is drawn. How many red marbles are there in the bag. So frac 4 7 of the marbles are now red.

Initially there were the same number of blue marbles and red marbles in a bag. Let x the number of draws. No packages or subscriptions pay only for the time you need. Initially blue marbles red marbles x then john.

You reach into the bag and draw a marble and then draw another marble without replacing the first one. Find an online tutor now choose an expert and meet online. 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. 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.

How many blue marbles are there. A bag has 3 blue marbles and 4 red marbles. What is the chance that the first draw is a red marble. A bag has 16 blue 20 red and 24 green marbles.

If the first marble drawn was a red marble what is the chance that the second draw is a blue marble. So simple multiplication will give the desired probability. And so this is sometimes the event in question right over here is picking the yellow marble.