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Lesson 1: Measuring center in quantitative data. Statistics intro: Mean, median, & mode. Mean, median, & mode example. Mean, median, and mode. Calculating the mean.
Introduction to mean, median, and mode in statistics with examples and explanations.
Practice finding the median of a data set. Like the mean, the median gives us a sense of the middle, or center, of the data.
Calculating the mean. Calculating the median. Choosing the "best" measure of center. Mean, median, and mode review.
This unit covers common measures of center like mean and median. We'll also learn to measure spread or variability with standard deviation and interquartile range, and use these ideas to determine what data can be considered an outlier.
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Khan Academy
Practice computing the median of data sets presented in a variety of formats, such as frequency tables and dot plots.
The mean (average) of a data set is found by adding all numbers in the data set and then dividing by the number of values in the set. The median is the middle value when a data set is ordered from least to greatest. The mode is the number that occurs most often in a data set.
Learn about range, variance, and standard deviation as measures of dispersion in statistics.