A look at the probability plot of the data (Figure 6) revealed a non-normal distribution. Therefore, the control limits of the control chart were useless. The Green Belt used the Box-Cox power ...

In a normal distribution, data around the mean (average ... It can be shown either as a graph or a list, and reveals which values of a random variable have lower or higher chances of happening.

Graphs are a useful way to show different types of data. A variety of graphs, such as line, bar or pie graphs, are used to present different types of data. Graphs can be used to summarise data ...