Learn different ways to measure the "center," or typical values, of a set of data: mean, median, and mode.
The mean of a numerical dataset is the average of all the values:
The mean is also sometimes denoted μ.
The median of a dataset is the middle value when the values are sorted. If a dataset has an even number of values, the median is the average of the middle two.
Mathematically, the median is the
value. Notice that if n is even then 2n+1 is halfway between two consecutive integers, indicating we need to average their values.
The mode of a dataset is the most common value in a dataset.
Nice work completing Measures of center, here's a quick recap of what we covered:
Exercises checked off
Learn different ways to measure the "center," or typical values, of a set of data: mean, median, and mode.
The mean of a numerical dataset is the average of all the values:
The mean is also sometimes denoted μ.
The median of a dataset is the middle value when the values are sorted. If a dataset has an even number of values, the median is the average of the middle two.
Mathematically, the median is the
value. Notice that if n is even then 2n+1 is halfway between two consecutive integers, indicating we need to average their values.
The mode of a dataset is the most common value in a dataset.
Nice work completing Measures of center, here's a quick recap of what we covered:
Exercises checked off