Calculate the mean deviation from the median of the following frequency distribution:

Question

Calculate the mean deviation from the median of the following frequency distribution

Asked by Sakshi | 1 year ago | 39

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Class 11 Maths Statistics Add Answer

Find the mean deviation from the mean and from a median of the following distribution:

Marks	0-10	10-20	20-30	30-40	40-50
No. of students	5	8	15	16	6

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The age distribution of 100 life-insurance policy holders is as follows

Age (on nearest birthday)	17-19.5	20-25.5	26-35.5	36-40.5	41-50.5	51-55.5	56-60.5	61-70.5
No. of persons	5	16	12	26	14	12	6	5

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Marks	10-20	20-30	30-40	40-50	50-60	60-70	70-80	80-90
No. of students	8	10	15	25	20	18	9	5

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Find the mean deviation from the mean for the following data:

Classes	95-105	105-115	115-125	125-135	135-145	145-155
Frequencies	9	13	16	26	30	12

Class 11 Maths Statistics View Answer

Find the mean deviation from the mean for the following data:

Classes	0-100	100-200	200-300	300-400	400-500	500-600	600-700	700-800
Frequencies	4	8	9	10	7	5	4	3

Class 11 Maths Statistics View Answer

Accepted Answer

To find the mean deviation from the median, firstly let us calculate the median.

We know, Median is the Middle term,

So, Median = 61

Let x_i =Heights in inches

And, f_i = Number of students

N=197

= \( \dfrac{1}{197}\) × 336

= 1.70

The mean deviation is 1.70.

Answered by Aaryan | 1 year ago