1.

Find the mode of 10, 12, 11, 10, 15, 20, 19, 21, 11, 9, 10

Answer»

The given observations are 10, 12, 11, 10, 15, 20, 19,21,11,9, 10

∴ The most frequently occurring observation is 10. 

∴ Mode = 10



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