Question

The following table shows the age distribution of patients of malaria in a village during a particular month:

Age (in years)	5 – 14	15 – 24	25 – 34	35 – 44	45 – 54	55 - 64
No. of cases	6	11	21	23	14	5

Find the average age of the patients.

Answer 1

Now, A = 29.5, h = 10, Ʃ f_i = 80 and Ʃ (f_i × u_i) = 43

= 29.5 + 5.375 

= 34.875 

∴ \(\bar{x}\) = 34.875 

∴ The average age of the patients is 34.87 years.