The Median

The MEDIAN The average is the value which comes at the mid-point of a spate of determine when they are consistent in order. The major(ip) avail of the median(a), which it shares with the mode, is the event that is unaffected by extreme lashings. The calculation of the median does non require any assumptions about the interval properties of the scale. A major dis gain of the median is that it does not enter readily into equations and is thereof more difficult to work with than the esteem. It is also not as stable from sample to sample, which is another dis profit. The MEAN The arithmetic curb is obtained by dividing the sum of all the slays by the number of sums and it is the virtually common measure of central tendency. The major advantage of the hold still for is that e actually score makes a contri preciselyion to the total, enemy to the median where only one or two score in the centre of the sample count. The second advantage of the mean is that i t dis base be manipulated algebraically, which means we can use the mean in an equation and manipulate it through the normal rules of algebra. However, it is very unsanded to the presence of extremes scores, and therefore should be utilize when score determine are reasonably close together, which can be dogged by inspection.

The RANGE The range expresses the spreading of scores in a info set, and it is the difference between the maximum and marginal values. The range is the measure of dispersion used for ordinal information and it is the least informative and least stable of all the measures of dispersion.. The advantage of the range is obviously the fact that it is the sim plest of all statistics to compute just now! it is very limited in what it can convey. Although it tells us the coat of the space between the top and bottom scores, it does not place anything about how all the other scores are pose inside that space. The STANDARD DEVIATION The measure of dispersion used when we restrain ratio data is known as the bar deviation. It is the...If you motive to get a full essay, order it on our website: OrderEssay.net

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