Q1 of 79 Page 24

Calculate the mean for the following distribution:

x :

5

6

7

8

9

f :

4

8

14

11

3

Therefore, Mean () =

= 7.025

Find the sum of the deviations of the variable values 3, 4, 6, 7, 8, 14 from their mean.

If is the mean of the ten natural numbers, x₁, x₂, x₃,…., x₁₀, show that

(x₁-)+(x₂-)+ ….+(x₁₀-)= 0.

Find the mean of the following data:

x:	19	21	23	25	27	29	31
f :	13	15	16	18	16	15	13

Find the mean of the following data is 20.6. Find the value of p.

Questions · 79

24. Measures of Central Tendency

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 13 1 2 3 4 5 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Calculate the mean for the following distribution:x :56789f :4814113