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NTU notes 6422quiz review (1-3 sections)
2022-07-07 04:23:00 【UQI-LIUWJ】
1 variance
Sample variance
Total variance
2 Discrete coefficient coefficient of variation
( percentage )
3 Chebyshev's law
For all the data , Its mean value is known to be μ The standard deviation is s, So for anything greater than 1 Of k,[μ-ks,μ+ks] Contains at least 1-1/k^2 Proportional data
4 Discrete and continuous probability density
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