Confidence votes 260K. Toni Morrison has written 21 books. This includes novels, non-fiction, children's books and regular books. She co-wrote the children's books with her son, Slade Morrison.
That is, RAND() generates random probabilities. Therefore, you can use the NORM.INV function to calculate a random number from a normal distribution, using this formula in Excel 2007 and above... =NORM.INV(RAND(), mean, standard_dev). ...and this formula in Excel 2003...he standard deviation of a sample is a measure of the spread of the sample from its mean. (We're taking about many items in a sample, of course, not just a single item.) In a normal distribution, about 68% of a sample is within one standard deviation of the mean.
normal distribution a symmetrical distribution of scores with the majority concentrated around the mean; for example, that representing a large number of independent random events. It is in the shape of a bell-shaped curve. Called also gaussian distribution. distribution which is normal when the log values of the variable are considered. normal distribution. a graph of the distribution appears as a bell-shaped curve which is symmetrical on the two sides of the vertical axis through the peak of the curve. Called also gaussian distribution.