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Range, standard deviation, variance, root mean square, interquartile range
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What is despersion?
Dispersion is an abstract quality of a sample of data. Dispersion is how far apart or scattered the data values appear to be. Common measures of dispersion are the data range and standard deviation.
What includes the range and the interquartile range?
Both are measures of spread or dispersion.
What important feature of the data set is not revealed through the different measures of centre?
The dispersion of the data.
Why measures of dispersion are important along with measures of central tendency to understand the nature of the data?
Central tendency will only give you information on the location of the data. You also need dispersion to define the spread of the data. In addition, shape should also be part of the defining criteria of data. So, you need: location, spread & shape as best measures to define data.
Why are the measures of dispersion necessary to describe a set of data?
Sets of data have many characteristics. The central location (mean, median) is one measure. But you can have different data sets with the same mean. So a measure of dispersion is used to determine whether there is a little or a lot of variability within the set. Sometimes it is necessary to look at higher order measures like the skewness, kurtosis.
What do you mean by measures of central tendency and dispersion?
Common measures of central tendency are the mean, median, mode. Common measures of dispersion are range, interquartile range, variance, standard deviation.
What is despersion?
Dispersion is an abstract quality of a sample of data. Dispersion is how far apart or scattered the data values appear to be. Common measures of dispersion are the data range and standard deviation.
What is dispersion and various measures of dispersion?
Dispersion is the act of spreading people or things (like seeds) out over a large area. Measures of dispersion tell us the degree of variation of values in a sample or population.
What is the difference between the measures of central tendency and the measures of dispersion?
difference
Are measures of central tendency complement to measures of dispersion?
call thi
What is measures of dispersion?
pascal/newton kilometre
Can any of the measures of dispersion ever be negative?
no
What is the most common dispersion in nature?
There are many dispersions, there is uniform, clumped and random. The most common is clumped dispersion
How to calculate measures of dispersion?
34049-50(25.54)2
What are the definitions of means medians and modes Give an example of each that is reported in a health care organization Are measures of dispersion typically reported as well -- why would they b?
Are measures of dispersion typically reported as
What includes the range and the interquartile range?
Both are measures of spread or dispersion.
What is relative measure?
These measures are calculated for the comparison of dispersion in two or more than two sets of observations. These measures are free of the units in which the original data is measured. If the original data is in dollar or kilometers, we do not use these units with relative measure of dispersion. These measures are a sort of ratio and are called coefficients. Each absolute measure of dispersion can be converted into its relative measure. Thus the relative measures of dispersion are:Coefficient of Range or Coefficient of Dispersion.Coefficient of Quartile Deviation or Quartile Coefficient of Dispersion.Coefficient of Mean Deviation or Mean Deviation of Dispersion.Coefficient of Standard Deviation or Standard Coefficient of Dispersion.Coefficient of Variation (a special case of Standard Coefficient of Dispersion)
