It approximately describes the mean of a large number of random variables, according to the central limit theorem.
This distribution's ability to describe a population is the subject of the Shapiro-Wilks test. This distribution has at most two nonzero cumulants and forms a straight line on a Q-Q plot. It approximately describes the mean of a large number of random variables, according to the central limit theorem. This distribution, whose "standard" version has a mean of zero and a variance of one, has 68 percent of its values within one standard deviation of the mean. For 10 points, name the probability distribution whose graph is a symmetric bell curve.
This distribution's ability to describe a population is the subject of the Shapiro-Wilks test.
normal distribution [or Gaussian distribution; prompt on bell curve before mentioned]