1 Construct a probability tree, indicating the various possible outcomes that may occur, and each of their probabilities. Give the probability values in fraction form. 2 What is the probability that the two marbles selected will be different colours? Give the probability as a percentage to two decimal places.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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A bag contains 11 red and 10 blue marbles. You are asked to select two marbles
from the bag. The first marble selected will not be placed back into the bag.

1 Construct a probability tree, indicating the various possible outcomes
that may occur, and each of their probabilities. Give the probability
values in fraction form.

2 What is the probability that the two marbles selected will be different
colours? Give the probability as a percentage to two decimal places.

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