METHODS OF DATA ANALYSIS
MEASURES OF CENTRAL TENDENCY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -The median and mean can only have one value for a given data set.
Detailed explanation-2: -A data set can have no mode, one mode, or more than one mode. The range of a data set is the difference between the largest and smallest values in the set.
Detailed explanation-3: -There is no mode when all observed values appear the same number of times in a data set. There is more than one mode when the highest frequency was observed for more than one value in a data set. In both of these cases, the mode can’t be used to locate the centre of the distribution.
Detailed explanation-4: -A data set can have no mean, no median, or no mode. An example of a data set for which this summary measure does not exist is a data set with an empty set of values.