R d sharma solutions mathematics class 9 Solutions for Chapter 24 measures of central tendency

If the heights of 5 persons are 140 cm, 150 cm, 152 cm, 158 cm and 161 cm respectively. Find the mean height.

Find the mean of 994 , 996 , 998 , 1002 , 1000.

Find the mean of first five natural numbers.

Find the mean of x , x + 2 , x + 4 , x + 6 , x + 8.

The percentage marks obtained by students of a class in mathematics are :

64 , 36 , 47 , 23 , 0 , 19 , 81 , 93 , 72 , 35 , 3 , 1. Find their mean.

The numbers of children in 10 families of a locality are:

2 , 4 , 3 , 4 , 2 , 3 , 5 , 1 , 1 , 5. Find the number of children per family.

Calculate the mean for the following distribution:

Find the mean of the following data:

Find the value of p for the following distribution whose mean is 16.6 .

Find the missing frequency (p) for the following distribution whose mean is 7.68

Find the median of the following data: 83 , 37 , 70 , 29 , 45 , 63 , 41 , 70 , 34 , 54

Find the median of the following data: 133 , 73 , 89 , 108 , 94 , 104 , 94 , 85 , 100 , 120

Find the median of the following data: 31 , 38 , 27 , 28 , 36 , 25 , 35 , 40

Find the median of the following data: 15 , 6 , 16 , 8 , 22 , 21 , 9 , 18 , 25

Find the median of the following data: 25 , 34 , 31 , 23 , 22 , 26 , 35 , 29 , 20 , 32

Find the median of the following data: 12 , 17 , 3 , 14 , 5 , 8 , 7 , 15

Find the median of the following data: 92 , 35 , 67 , 85 , 72 , 81 , 56 , 51 , 42 , 69

Find the mode for the following series: 7.5 , 7.3 , 7.2 , 7.2 , 7.4 , 7.7 , 7.7 , 7.5 , 7.3 , 7.2 , 7.6 , 7.2