II. Probability and Statistics for Reliability
A. Basic concepts
1. Statistical terms (Apply)
Define and use terms such as population, parameter, statistic, sample, the central limit theorem, etc., and compute their values.
This lesson takes a close look at common statistical language.
Additional References
Statistical Terms (article)
Terms Glossary (downloads)
Quick Quiz
1-35. Identify the correct statement about probability distributions.
(A) The median is used to measure the central tendency.
(B) The variance is used to measure the central tendency.
(C) The third moment about the mean is used to measure the kurtosis.
(D) The fourth moment about the mean is used to measure the skewness.
(A) The median is used to measure the central tendency.
Mean, median and mode are measures of central tendency.
Variance is a measure of variability. Skewness is the third moment and kurtosis is the fourth moment. BTW the mean is the first moment and variance is the second moment.
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