To identify:The probability one of the marble you select is blue and the other is red.A jar contains four blue marbles and two red marbles. Suppose you choose a marble at random, and do not replace it. Then you choose a second marble.
The probability is
Given information:
A jar contains four blue marbles and two red marbles.
Explanation:
Consider the information.
Total marbles are
So, probability of selecting red marble is:
Since the marble is not replaced and have only 5 marbles left, 4 blue and 1 red.
So probability of selecting red marble is
So,
Hence
Similarly probability of selecting blue marble first is
Since the marble is not replaced and have only 5 marbles left, 3 blue and 2 red.
So probability of selecting red marble is
So,
Hence
So the total probability of selecting one blue and other red marble is
Hence
Chapter 11 Solutions
High School Math 2015 Common Core Algebra 2 Student Edition Grades 10/11
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