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Bookmark or Share- What do you call an average that does not include outliers?Obviously the above is a gross generalization, but there are interesting papers that talk about the families and classes of estimators in large and small sample settings and their properties. I work in bioinformatics aand usually you deal with small samples (3-10s) usually in mice models, and what not, and this paper gives a good technical ...
- In a given set of numbers can there be more than half above mean ...In this case, at most less than half ($\frac{n-1}{2}$, to be precise) students may score above the median. Notice that I said "at most" above: when multiple students score at the median, the number of students scoring over the median must be even less than the $\frac{n}{2}$ or $\frac{n-1}{2}$ figures I gave above.
- Calculating two standard deviations above the meanI have a variable a need to find data points which are two standard deviations above the mean. Example, let say we have: 2, 3, 4, 120, 5. Sample mean=26.11 Stan.deviation=52.11 I have been
- What is the difference between "mean value" and "average"?Average has many meanings, some of which are much less mathematical than the term "mean". Even within the context of numerical summaries, "average" can refer to a broad range of measures of central tendency. Thus, the arithmetic mean is one type of average. Arguably, when used without qualification the average of a numeric variable often is ...
- time series - How to use R to determine if a value is statistically ...However, if you get five years of temperatures for that day that average well above $35,$ you could do a Welch 2-sample t test to compare the 20-year historical data with the new data, to see if the new mean is significantly higher than the historical one.
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