Let x the number of draws.
Blue andred marbles bag problem.
So simple multiplication will give the desired probability.
A bag has 3 blue marbles and 4 red marbles.
This is called probability without replacement or dependent probability.
A bag contains blue marbles and red marbles 71 in total.
The number of blue marbles is 1 less than 3 times the number of red marbles.
No packages or subscriptions pay only for the time you need.
Initially there were the same number of blue marbles and red marbles in a bag.
Most questions answered within 4 hours.
How many blue marbles are there.
A bag contains 4 red marbles and 2 blue marbles.
So they say the probability i ll just say p for probability.
So frac 4 7 of the marbles are now red.
A bag has 16 blue 20 red and 24 green marbles.
The probability of picking a yellow marble.
Let x red marbles.
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.
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.
What fraction of the marbles in the bag are blue.
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.
Get a free answer to a quick problem.
Find an online tutor now choose an expert and meet online.
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 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.
You draw a marble at random without replacement until the first blue marble is drawn.
And so this is sometimes the event in question right over here is picking the yellow marble.
If the first marble drawn was a red marble what is the chance that the second draw is a blue marble.
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.
Initially blue marbles red marbles x then john.
What is the chance that the first draw is a red marble.
How many red marbles are there in the bag.