same as one way anova
population variance equal among groups
noramlly distributed
independent samples
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Descriptive statistics are meant to describe the situation such as the average or the range. Inferential statistics is used to differentiate between a couple of groups.
It is the difference between the highest and lowest value in a set of data.
The range of a function is the set of values that the function can take. In the context of probability and statistics, it is the difference between the maximum value and the minimum value that a variable can take.
In statistics the mode is the value that is observed most often. The range is the biggest observed value minus the smallest.
Their LCM is 30. A common multiple in that range is 90.