In research, you often collect data from samples and perform inferential statisticsto understand the population they came from. The formulas for the sample mean and the population mea… 展开

There are two steps for calculating the mean: 1. Add up all the values in the data set. 2. Divide this number by the number of values. We’ll walk through these steps with a sample data s… 展开

Outliersare extreme values that differ from most values in the data set. Because all values are used in the calculation of the mean, an outlier can have a dramatic effect on the mean by … 展开

The mean is the most widely used measure of central tendency because it uses all values in its calculation. The best measure of central tendency depends on your type of variableand th… 展开