Question

which measure of dispersion does not affected by the presence of extrem observation​

Answer 1

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Quartile Deviation can generally be calculated for open-ended distribu- tions and is not unduly affected by extreme values. Recall that dispersion was defined as the extent to which values differ from their average. Range and Quartile Deviation are not useful in measuring, how far the values are, from their average.

Answer 2

Answer:

hey mate right answer is here.

Step-by-step explanation:

Mean is generally considered the best measure of central tendency and the most frequently used one. However, there are some situations where the other measures of central tendency are preferred. There are few extreme scores in the distribution.