Distributions
Reason about averages, medians, spread and outliers. Change a data value to see which conclusions still hold.
Means and medians of small data sets
1 question · No time limit · Explore after checking
Example
Example
What is the exact arithmetic mean of these observations?
The data values are 10, 12, 6, 13, 11, 14, 11, 10. Each listed value is one observation.
Data values: 10, 12, 6, 13, 11, 14, 11, 10
Choose an answer to try the example.
Why?
The sum is 87 and there are 8 observations.
(10 + 12 + 6 + 13 + 11 + 14 + 11 + 10)/8 = 87/8
Explore the idea
Data values: 10, 12, 6, 13, 11, 14, 11, 10
- Mean
- 10.88
- Median
- 11
- Range
- 8
- Population standard deviation
- 2.26
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About this practice
Learn a method
Choose a useful centerReason about averages, medians, spread and outliers. Change a data value to see which conclusions still hold.
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Optional and off by default. Share starts, completions, replays and error categories. For visits from ChatGPT, starts and completions can also include the first QuickenBrain page and broad country. No answers, drawings or names.
How this data is used