how to find a median class of a grouped interval
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by comparing the CF and n/2
nearest and slightly greater than it CF class interval is median class
nearest and slightly greater than it CF class interval is median class
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If the number of frequency is odd then n/2 . And if the number of frequency is even then the average of n/2 and n/2 +1 observations.
There is also a formula
3median = 2mean+mode
There is also a formula
3median = 2mean+mode
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