如何计算Mean Median Mode
learn.whatIsHeading
Mean, median, and mode are the three main measures of central tendency. They describe the "centre" of a dataset in different ways — mean uses all values, median uses position, and mode uses frequency.
分步指南
- 1Mean: add all values, divide by count
- 2Median: sort the data, find the middle value (or average the two middle values for even count)
- 3Mode: find the most frequently occurring value
例题解析
输入
Dataset: 2, 3, 3, 5, 7, 10
结果
Mean=5, Median=4, Mode=3
Median=(3+5)/2=4
输入
Incomes: $30k,$35k,$40k,$200k
结果
Mean=$76.25k, Median=$37.5k
Outlier skews mean
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