arithmetical mean


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Related to arithmetical mean: Weighted arithmetic mean

arithmetical mean

The total of all values divided by the number of observations. If the distribution of the values is skewed, the arithmetical mean is a misleading figure. In such a case the GEOMETRIC MEAN is appropriate.
References in periodicals archive ?
3 includes the results of the arithmetical means, of the initial and final values, regarding the evaluation of coordination, balance and stability of the experimental group of subjects covered by the research.
R[S.sub.1](3, n) satisfy arithmetical mean, [m.sub.1],
Arithmetical mean and standard deviation of the answers that prospective teachers give about their media literacy competencies were given in Table 3.
Table 1 showed that 38.3% of students ranked this activity at intensity 3 and 36.2% at intensity 4, or rather, an arithmetical mean of 3, close to maximum stress.
Estimation of average tariff for water services (drinking water, wastewater treatment) as percentage of household income: Latvia, data on 88 projects arithmetical mean weighted mean Before the project 2,13% 1,90% After the project 2,61% 1,95% After the project + one year 2,74% 1,98% Year 2015 2,53% 1,89% Note: Table made from line graph.
The adequacy of the system model response to the real object response to the same input signal g is verified by calculating the arithmetical mean of the response error.
We documented a DDE/DDT plasma arithmetical mean of 77 ppb, with no biochemically alarming concomitant mean values (such as alpha amylase -66.94, AST-18.18, ALT-9.33, and GGT-31.05 [micro]g/l), indicating no disease associated with absorbed pesticide subsequent to IRS operations.
The points limit will be central to the discussions, having been due to rise from 38.85 to 39.90 - still below the arithmetical mean and therefore a further reduction in strengh - but the direction in which it will go now is unclear.
Instead of using the arithmetical mean, we chose the median for the analyses, since there is empirical evidence showing that this is the best option for contaminated distributions (see Ratcliff, 1993; Perea & Algarabel, 1999; see also Acha & Perea, in press, for a study with beginning readers).
The deviation that exists between British and Irish ratings was covered in detail by colleague Andrew Scutts in an article in this paper in March 2006, but stems from the fact that in September 2003 the BHA adjusted its ratings by a graduated amount to account for slippage (change in the arithmetical mean of the horse population), as they had done so at a similar stage of each season since 2000.
We prepared two sets of steel plates, of which surface roughness (arithmetical mean surface roughness) were less than 3.1 um (plate 1) and 25 um (plate 2).