Blue Andred Marbles Bag Problem

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Blue andred marbles bag problem.

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

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. Let x the number of draws. The probability of picking a yellow marble. 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.

A bag contains 4 red marbles and 2 blue marbles. You reach into the bag and draw a marble and then draw another marble without replacing the first one. Get a free answer to a quick problem. What is the chance that the first draw is a red marble.

A bag has 16 blue 20 red and 24 green marbles. Let x red marbles. Most questions answered within 4 hours. 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.

A bag has 3 blue marbles and 4 red marbles. John took out 5 blue marbles and then there were twice as many red marbles as blue marbles in the bag. This is called probability without replacement or dependent 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.

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

A bag contains blue marbles and red marbles 71 in total. 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. So simple multiplication will give the desired probability. The sample space for the second event is then 19 marbles instead of 20 marbles.

So they say the probability i ll just say p for probability. Initially blue marbles red marbles x then john. Initially there were the same number of blue marbles and red marbles in a bag.