A random sample of 60 marbles selected with replacement from the urn showed that 70 were red.
If there are 60 white marbles and 40 red marbles.
Out of 50 samples of 20 marbles each selected with replacement from the urn how many samples can be expected to consists of a equal numbers of red and white marbles b 12 red and 8 white marbles c 8 red and 12 white marbles d 10 or more white marbles.
In a jar 1 2 of the marbles are red 1 4 are white and 1 5 are blue.
50 blue and 30 are green.
5 blue 3 purple 20 total 0 40.
There are a combined total of 60 marbles in the jar consisting of red green blue and white marbles.
So i could pick that green marble or that green marble.
Find a 95 b 99 c 99 73 confidence limits for the actual proportion of red marbles in the urn.
There s two green marbles in the bag.
If you increase the number of blue marbles by 40 how many blue marbles will be in the bag.
The following is the proportions of the marbles.
So this is all the possible outcomes.
3 4 black and blue marble br estimated 20 40 br sold for 40.
For a probability of 75 75 of the marbles must be blue.
Marbles are part of a wide variety 865 lots of toys trains die cast vehicles and figures that was auctioned live on ebay october 26 2003.
1 5 8 cobalt and white swirl marble br estimated 300 600 br sold for 130.
Then the total probability is p blue p purple 0 25 0 15 0 40 of picking blue or purple.
One third of the marbles are red half the marbles are blue the remaining 1 6 is divided up evenly between the green and white marbles.
6 40 an urn contains red and white marbles in an unknown proportion.
Then take 25 of 60 60 x 25 15 blue marbles then for the white marbles it s 60 21 15 24 remember that a 100 probability in this case is going to be 60 60.
What fraction of the marbles are neither red white nor blue.
There s one blue marble.
Present the results using both the approximate formula and.
And sometimes this is referred to as the sample space.
Write the ratio of the number of blue mrables to the total of marbles in terms of r b and w 14156989.
This is from a sampling of items that were auctioned.
There s two red marbles in the bag.
An urn contains 80 marbles of which 60 are red and 40 are white.
In a bag of blue green and red marbles.
There are r red b blue marbles and w.
White marbles in a bag.
3 4 must be blue if there were 60 blue marbles the probability would be 50 if there were 120 blue marbles it would 66 7 or 2 3 if 1 4 were red and 3 4 were blue then it would 75 1 4x 60 x 240 240 40 is 200 so 200 more blue marbles are needed.
And then there s one blue marble in the bag.
