Question

Estimate the arithmetic mean of following data.
i) 17, 25, 28, 35, 40
ii) 5, 6, 7, 8, 8, 10 10, 10, 12, 12, 13, 19, 19, 19, 20
Verify your answers by actual calculations.​

Answer 1

1)A.M=17+25+28+35+40)/5=145/5=113.

2)A.M=178/15=11.87