Arithmetic Mean (Discrete Series)- Direct and Short-cut Method Solved Examples
Arithmetic Mean Discrete Series Direct Method- To find out the total of items in discrete series, frequency of each value is multiplied with the respective size. The values so obtained are totaled up. This total is then divided by the total number of frequencies to obtain the arithmetic mean. Question 1(a): Calculate mean from the following data by using direct method. Value: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 Frequency: 21, 30, 28, 40, 26, 34, 40, 9, 15, 57 Value (x ) Frequency (f ) fx 1 21 21 2 30 60 3 28 84 4 40 160 5 26 130 6 34 204 7 40 ...