For a random variable X, the mean value of the squared deviations of its values from their expected value is called its ________.
A) standard deviation
B) mean
C) probability
D) variance

Name: For a random variable X, the mean value of the squared deviations of its values from their expected value is called its ________. A) standard deviation B) mean C) probability D) variance
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Quizplus · Accepted Answer

This can then be used to find the standard deviation, which is the positive square root of the variance.

For a Random Variable X, the Mean Value of the Squared