When you request a lognormal probability plot, you must specify the shape parameter for the lognormal distribution (see Table 9.13 for the equation). The value of must be positive, and typical values ...

There are many reasons why the point pattern in a Q-Q plot may not be linear. Chambers and others (1983) and Fowlkes (1987) discuss the interpretations of commonly encountered departures from ...

A two-way table is a way to organise data about two specific variables. This example shows a two-way table where the variables are gender and favourite sport. What is the probability of randomly ...