- mean = 200.4
- median = 186
- mode = none
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To calculate the mean (represented by ¯X), we sum all the cholesterol levels and then divide by the number of cholesterol readings.
Add all the cholesterol levels together:
154 + 240 + 171 + 188 + 235 + 203 + 184 + 173 + 181 + 275 = 2004
Divide the sum by the number of cholesterol readings:
The median is the middle number when a data set is ordered from least to greatest. For an even number of data points, it is the average of the two middle numbers. Order the data:
- 154, 171, 173, 181, 184, 188, 203, 235, 240, 275
The median is the average of the 5th and 6th values:
The mode is the number that appears most frequently in the data set. Since all numbers in this set are unique, there is no mode, so we say the mode is 'none'.
