25
Feb
Four Measures Of Central Tendency. There are three main measures of central tendency. The mode median and mean. What does the mean mean. Now this is not a statistics course.
The mode median and mean. Median is used when the classes are open ended or it is of un equal cell size. The mean is frac1 cdot 42 cdot 83 cdot 74 cdot 35 cdot 123 approx 25 There are 23 data values so the median will be the 12 th data value. While they are all measures of central tendency each is calculated differently. Here mid-range or mid-extreme of a set of statistical data values is the arithmetic mean of the maximum and minimum values in a data set. Median is used when it is required that certain scores should affect the central tendency but all that is known about them is that they are above or below the median.
What are the 4 measures of central tendency.
Three of the many ways to measure central tendency are the mean median and mode. In statistics the three most common measures of central tendency are the mean median and mode. In this chapter well discuss three measures of central tendency. By now you should know. You will often hear the mean median and mode referred to as measures of central tendency. Measures of central tendency yield information about the center or middle part of a group of numbers.