Box With Marbles In Them You Draw Out Three

Three closed boxes have either white marbles black marbles or both and they are labeled white black and both.

Box with marbles in them you draw out three.

Are the events red black and yellow mutually exclusive. There are 3 red marbles and 7 black ma. You draw one marble from a box with a sticker red and white let s say its red. That means the box has to be full of red marbles if there were white ones too the sticker would have been on a correct box.

In the three samples you draw if two are to be black the non black marble could be drawn first second or third three possibilities in total. Which box should you remove a marble from to determine the contents of all three boxes. Three closed boxes have either white marbles black marbles or both and they are labeled white black and both. Box marked as white must be mixed red is already taken and white would be correctly.

Asked 09 29 16 box contains three marbles one red one black and one yellow. However you re told that each of the labels are wrong. Which box should you remove a marble from to determine the contents of all three boxes. You may reach into one of the boxes and pull out only one marble.

You may reach into one of the boxes and pull out only one marble. Sampling from the box with replacement will return a black marble frac13 of the time. You only need one.