Find the arithmetic mean of 2, 4, 6, 8, 10.
6
5
4
3
ArithmeticMean=Sum of all observationsNumber of observations = (2+4+6+8+10)5 = 305 = 6 ∴ArithmeticMean = 6
Find the arithmetic mean of the following data: 2, 3, 4, 5, 6, 7, 8, 9
The following are marks in a class assessment:
4, 6, 7, 5, 3, 5, 4, 5, 2, 6, 2, 5, 1, 9, 6, 5, 8, 4, 6, 7
Draw the Tally mark - frequency table and find the arithmetic mean.