What is the second moment about the mean?
Correct answer B. Variance
Explanation
The second central moment is Σ(x − x̄)²/n, which is exactly the formula for the variance.
Answer checked How we write and check questions
Tip: press A, B, C or D to answer, and N for the next question.
Advertisement
More Statistics questions
See allFor which kind of distribution is the coefficient of skewness always zero?
Correct answer B. Symmetrical
What is the mean deviation of the values 18, 12 and 15?
Correct answer A. 2
Advertisement
In a unimodal distribution, if the mode is less than the mean, what is the distribution?
Correct answer C. Positively Skewed
Which one of the following measures of dispersion is relative rather than absolute?
Correct answer B. Coefficient of Variation
Discussion