X-Nico

6 unusual facts about arithmetic mean


68–95–99.7 rule

In statistics, the 68–95–99.7 rule, also known as the three-sigma rule or empirical rule, states that nearly all values lie within three standard deviations of the mean in a normal distribution.

Accumulated cyclone energy

Measured over the period 1951–2000 for the Atlantic basin, the median annual index was 87.5 and the mean annual index was 93.2.

Average Indexed Monthly Earnings

If a worker has 35 or fewer years of earnings, then the Average Indexed Monthly Earnings is the numerical average of those 35 years of covered wages; with zeros thrown into the average for the number of years less than 35.

Daimler DR450

The maximum speed of the car was a (mean) of 113.5 mph, 182.6 km/h and the best run 114 or 183.2 km/h.

Newman–Keuls method

The Newman–Keuls or Student–Newman–Keuls (SNK) method is a stepwise multiple comparisons procedure used to identify sample means that are significantly different from each other.

SOFA Statistics

Nested tables can be produced with row and column percentages, totals, sd, mean, median, lower and upper quartiles, and sum.


Mean circulatory filling pressure

In medicine, the mean circulatory filling pressure (Pmcf) is defined as the mean pressure that exists in the vascular system if the cardiac output stops and the pressure within the vascular system redistributes.

Peak-reading

A peak-reading electrical instrument or meter is one which measures the peak value of a waveform, rather than its mean value or RMS value.


see also