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What are the characteristics of a good measure of central tendency?
Wiki User
∙ 12y ago
Properties of a good measure of central tendency are:-
- It should be rigidly defined.
- It should include all observations.
- it should be simple to understand and easy to calculate.
- it should be capable of further mathematical treatment.
- It should be least affected by extreme observations.
- it should possess sampling stability.
Wiki User
∙ 12y ago
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What is a good measure of central tendency if a data set contains extreme values that may be the result of incorrect measurement?
The median.
Is it true that BLER is the best measure of CD quality?
BLER is a good measure of CD quality, but it's very subjective.
Characteristics of Good Quality Data?
1. accurate information 2. organized information 3. timely information 4. verifiable information 5. accessible information 6. economical information 7. useful information
Why is it a good idea to make a graph of the data in the data table?
Viewing the data is an easy way to see some of their characteristics such as trends, seasonality, outliers, relationship between variables (linear, quadratic, power etc).
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Ideally, representative samples should be: Taken at random so that every member of the population of data has an equal chance of selection; Large enough to give sufficient precision; Unbiased by the sampling procedure or equipment.
Which measure of central tendency best describes the data set without an outlier?
The mean may be a good measure but not if the data distribution is very skewed.
What is a good measure of central tendency if a data set contains extreme values that may be the result of incorrect measurement?
The median.
Would the mode be the best measure of central tendency for heights in class?
The variable, height, is a continuous variable. The mode is not a good measure of central tendency for continuous variables because you would need a very large number of observations (pupils) before you are likely to get a useful number of repeat values. The modal class may be a good measure. Provided you do not have extremely short or extremely tall pupils, the mean would probably be the best.
When is finding the average not useful?
There is no meaningful average wen data are categorical (qualitative). Also, the arithmetic mean is not a good measure of central tendency when the data distribution is skewed.
Can you use the mean to answer a statistical question explain?
You can use the mean to answer some statistical questions: it is a measure of the central tendency of a set of data. However, it is no good in identifying the maximum value of a set of data, for example.
Did Francisco Pizarro have any unique characteristics?
Francisco Pizarro's characteristics were not very good. All I know is that he lied about everything to anyone, he had a tendency to murder, and he stole very valuable items.
What are the characteristics of a good measure of dispersion?
A good measure of dispersion is one such that the a goodness-of-fit test shows that the observed values agree well with the expected values.
Why are three different measures needed in math measures of central tendency and dispersion?
There are more than three measures. Some are better than others in some situations but not as good in other situations.
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