You may reach into one of the boxes and pull out only one marble.
Box with marbles in them you draw out three.
Asked 09 29 16 box contains three marbles one red one black and one yellow.
One marble is drawn.
Are the events red black and yellow mutually exclusive.
Three closed boxes have either white marbles black marbles or both and they are labeled white black and both.
Sampling from the box with replacement will return a black marble frac13 of the time.
You draw one marble from a box with a sticker red and white let s say its red.
Box marked as white must be mixed red is already taken and white would be correctly.
There are 3 red marbles and 7 black ma.
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.
You may reach into one of the boxes and pull out only one marble.
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.
Three closed boxes have either white marbles black marbles or both and they are labeled white black and both.
However all three boxes are mislabeled.
You only need one.
However you re told that each of the labels are wrong.