Find the mean deviation about the mean for the data

4, 7, 8, 9, 10, 12, 13, 17

Find the mean deviation about the median for the data.

13, 17, 16, 14, 11, 13, 10, 16, 11, 18, 12, 17

Find the mean deviation about the median for the data.

36, 72, 46, 42, 60, 45, 53, 46, 51, 49

Find the mean deviation about the mean for the data.

xi	5	10	15	20	25
fi	7	4	6	3	5

 

Find the mean deviation about the mean for the data.

xi	10	30	50	70	90
fi	4	24	28	16	8

 

Find the mean deviation about the median for the data.

xi	5	7	9	10	12	15
yi	8	6	2	2	2	6

Find the mean deviation about the median for the data.

xi	15	21	27	30	35
yi	3	5	6	7	8

 

Find the mean deviation about the mean for the data:

Income per day	Number of persons
0-100	4
100-200	8
200-300	9
300-400	10
400-500	7
500-600	5
600-700	4
700-800	3

Find the mean deviation about the mean for the data:

Heights in cms	Number of boys
95-105	9
105-115	13
115-125	26
125-135	30
135-145	12
145-155	10

Find the mean deviation about median for the following data:

Marks	Number of girls
0-10	6
10-20	8
20-30	14
30-40	16
40-50	4
50-60	2

Calculate the mean deviation about median age for the age distribution of 100 persons given below:  

Age	16-20	21-25	26-30	31-35	36-40	41-45	46-50	51-55
Number	5	6	12	14	26	12	16	9

 

Find the mean and variance for the data 6, 7, 10, 12, 13, 4, 8, 12

Find the mean and variance for the first n natural numbers.

Find the mean and variance for the first 10 multiples of 3.

Find the mean and variance for the data

xi	6	10	14	18	24	28	30
fi	2	4	7	12	8	4	3

Find the mean and variance for the data

xi	92	93	97	98	102	104	109
fi	3	2	3	2	6	3	3