Marbles In A Box Answer

In the second trial after the first trial a marble is drawn randomly from box b.

Marbles in a box answer.

Box b contains 7 white and 4 black marbles. A random experiment is performed in two sequential trials by first drawing a marble randomly from box a and putting into box b. The box is made from 27 transparent unit cubes arranged in a 3 by 3 by 3 array. Imagine a three dimensional version of noughts and crosses where two players take it in turn to place different coloured marbles into a box.

Consider an experiment where two marbles are drawn from the box. In the second trial after the first trial a marble is drawn randomly from box b. A random experiment is performed in two sequential trials by first drawing a marble randomly from box a and putting it into box b. Express your answer as a fraction or a decimal number rounded to four decimal places.

Expert answer 100 1 rating previous question next question transcribed image text from this question. One red one green and one blue. Box b contains 7 white and 4 black marbles. A box contains three marbles.

Answer the following questions. Box b contains 7 white and 4 black marbles. A assume that the first marble is replaced in the box before drawing the second marble. Answer the following questions.

In the second trial after the first trial a marble is drawn randomly from box b. If the first marble chosen was a white marble what is the probability of choosing without replacement another white marble. Age 11 to 16 challenge level. A box contains 16 green marbles and 5 white marbles.