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.

If there are 60 white marbles and 40 red marbles.

A random sample of 60 marbles selected with replacement from the urn showed that 70 were red. Write the ratio of the number of blue mrables to the total of marbles in terms of r b and w 14156989. There s one blue marble. White marbles in a bag.

There s two green marbles in the bag. 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. So this is all the possible outcomes. An urn contains 80 marbles of which 60 are red and 40 are white.

There are a combined total of 60 marbles in the jar consisting of red green blue and white marbles. There s two red marbles in the bag. 6 40 an urn contains red and white marbles in an unknown proportion. There are r red b blue marbles and w.

Find a 95 b 99 c 99 73 confidence limits for the actual proportion of red marbles in the urn. So i could pick that red marble or that red marble. 3 4 black and blue marble br estimated 20 40 br sold for 40. 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.

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. This is from a sampling of items that were auctioned. 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.

An equivalent method is to sum the marble selections first. Present the results using both the approximate formula and. The following is the proportions of the marbles. In a bag of blue green and red marbles.

1 5 8 cobalt and white swirl marble br estimated 300 600 br sold for 130. For a probability of 75 75 of the marbles must be blue. What fraction of the marbles are neither red white nor blue. So i could pick that green marble or that green marble.

And sometimes this is referred to as the sample space. If you increase the number of blue marbles by 40 how many blue marbles will be in the bag. Then the total probability is p blue p purple 0 25 0 15 0 40 of picking blue or purple. In a jar 1 2 of the marbles are red 1 4 are white and 1 5 are blue.