Blue Andred Marbles Bag Problem

So they say the probability i ll just say p for probability.

Blue andred marbles bag problem.

Most questions answered within 4 hours. No packages or subscriptions pay only for the time you need. This is called probability without replacement or dependent probability. A bag has 16 blue 20 red and 24 green marbles.

John took out 5 blue marbles and then there were twice as many red marbles as blue marbles in the bag. You reach into the bag and draw a marble and then draw another marble without replacing the first one. How many blue marbles are there. 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 bag has 3 blue marbles and 4 red marbles. How many red marbles are there in the bag. Find an online tutor now choose an expert and meet online. 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 the probability of pulling a yellow marble from a bag with 3 yellow 2 red 2 green and 1 blue i m assuming marbles. The number of blue marbles is 1 less than 3 times the number of red marbles. The probability of picking a yellow marble. 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. Let x the number of draws. The sample space for the second event is then 19 marbles instead of 20 marbles. 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.

And so this is sometimes the event in question right over here is picking the yellow marble. Let x red marbles. Initially blue marbles red marbles x then john. You draw a marble at random without replacement until the first blue marble is drawn.

Initially there were the same number of blue marbles and red marbles in a bag. So frac 4 7 of the marbles are now red. So simple multiplication will give the desired probability. 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.

A bag contains blue marbles and red marbles 71 in total. Get a free answer to a quick problem. Answer by fombitz 32378 show source.