McGraw Hill Glencoe Algebra 2, 2012
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McGraw Hill Glencoe Algebra 2, 2012 View details
3. Probability Distributions
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Exercise 9 Page 747

The value of a random variable is the numerical outcome of a random event. A random variable can be discrete or continuous. Discrete variables represent countable values. Continuous variables can take on any value.

Random Variable: The number of files infected by a computer virus.
Classification: Discrete.
Explanation: See solution.

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The value of a random variable is the numerical outcome of a random event. A random variable can be discrete or continuous.

Discrete Continuous
This type of variable represents countable values. This type of variable can take on any value.

Let's now consider the given distribution.

the number of files infected by a computer virus

The random variable is the number of files infected by a computer virus. The files are finite and their number is countable. Therefore, the variable is discrete.