1.

The mean of the median mode and Range of the observations 7, 6, 7, 9, 14, 9, 7, 15 is 1. 8 2. 9 3. 10 4. 7

Answer»

Correct option is  1. 8

6, 7, 7, 7, 9, 9, 14, 15 

mode = 7 

range = 15 – 6 = 9 

median = 8

∴ mean = 7 + 9 + 8 / 3 = 8



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