Why median is the best measure of central tendency? FOR NET JRF COMMERCE MGMT. 4 position MEASURE?

What is measures of center mean, median and mode? FOR NTA NET JRF COMMERCE MANAGEMENT.
Which are the positional measures? FOR NTA NET JRF COMMERCE MANAGEMENT.
Related positional measures quartiles deciles percentiles. FOR NTA NET JRF COMMERCE MANAGEMENT.
What is importance of median? FOR NTA NET JRF COMMERCE MANAGEMENT.
STATISTICS MESURES OF CENTRAL TENDENCY FOR NTA NET JRF COMMERCE MANAGEMENT.

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