Blue Andred Marbles Bag Problem

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Blue andred marbles bag problem.

How many red marbles are there in the bag. 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. Most questions answered within 4 hours. You reach into the bag and draw a marble and then draw another marble without replacing the first one.

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. Find an online tutor now choose an expert and meet online. The sample space for the second event is then 19 marbles instead of 20 marbles.

Answer by fombitz 32378 show source. So frac 4 7 of the marbles are now red. What is the chance that the first draw is a red marble. How many blue marbles are there.

So simple multiplication will give the desired probability. Initially blue marbles red marbles x then john. 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. If the first marble drawn was a red marble what is the chance that the second draw is a blue 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. Get a free answer to a quick problem. The probability of picking a yellow marble. Initially there were the same number of blue marbles and red marbles in a bag.

This is called probability without replacement or dependent probability. You draw a marble at random without replacement until the first blue marble is drawn. John took out 5 blue marbles and then there were twice as many red marbles as blue marbles in the bag. A bag has 3 blue marbles and 4 red marbles.

What fraction of the marbles in the bag are blue. A bag contains 4 red marbles and 2 blue marbles. Let x 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.

Let x the number of draws. A bag has 16 blue 20 red and 24 green marbles. And so this is sometimes the event in question right over here is picking the yellow marble.