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Q: The 'mean' is useful only if there is variability in the .?
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What tool is most useful for viewing the variability of a quality characteristic?

Control Charts


What is the pattern of a variability within a data set called?

The range, inter-quartile range (IQR), mean absolute deviation [from the mean], variance and standard deviation are some of the many measures of variability.


What does rainfall variability mean?

rainfall variabilty


What does variability mean in math?

Variability is an indicationof how widely spread or closely clustered the data valuesnare. Range, minimum and maximum values, and clusters in the distribution give some indication of variability.


Does variability include mean median mode and range?

No, it does not


What is variability in math terms?

range,mode ,mean and cluster


Which measure of variability is used most often in conjunction with the mean?

range


What does the standard deviation of a set of data tell you?

It tells you how much variability there is in the data. A small standard deviation (SD) shows that the data are all very close to the mean whereas a large SD indicates a lot of variability around the mean. Of course, the variability, as measured by the SD, can be reduced simply by using a larger measurement scale!


What is climate variability?

Climate variability is unknown


What does Lack variability mean?

Lack - verb, does not haveVariability - noun, the quality of change or difference


When two distributions have the same mean but different distribution and variability?

The answer will depend on what the question actually is!


What is the most commonly used measure of variability?

Standard deviation is a commonly used measure of the variability of a set of measurements.But that usually refers to a 'normal' distribution - an assumption that the results are distributed according to a 'normal' (Gaussian) curve. There are several other types of distribution, Poisson, Bernoulli, and others.It is important to note that the application of standard deviation becomes less and less useful as one approaches the extremes of the set of measurements.