The random variable X, representing the number of errors per 100 lines of software code, has the following probability distribution. 3 4 5 6 f(x) 0.3 0.25 0.01 0.04 0.4 Use the following theorem to determine the variance of the random variable X. The variance of a random variable X is o? = E (x?) - u?. The variance is (Round to two decimal places as needed.)

MATLAB: An Introduction with Applications
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Chapter1: Starting With Matlab
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The random variable X, representing the number of errors per 100 lines of software code, has the following probability distribution.
3
4
5
6
f(x)
0.3
0.25
0.01
0.04
0.4
Use the following theorem to determine the variance of the random variable X.
The variance of a random variable X is o? = E (x?) - u?.
The variance is (Round to two decimal places as needed.)
Transcribed Image Text:The random variable X, representing the number of errors per 100 lines of software code, has the following probability distribution. 3 4 5 6 f(x) 0.3 0.25 0.01 0.04 0.4 Use the following theorem to determine the variance of the random variable X. The variance of a random variable X is o? = E (x?) - u?. The variance is (Round to two decimal places as needed.)
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