Question

(111) Calculate the mean deviation from median of the
following frequency distribution:
Marks
10
15
20
25
30
35
40
45
No. of
students
7
8
5
6
8
9​

Answer 1

Answer:

of marks:

mean= total of data/total no.of data

mean=10+15+20+25+30+35+40+45/8

mean=220/8

mean=110/4

mean=55/2

mean=27.5

median=

ascending order: 10 15 20 25 30 35 40 45

median=n(no.of data)/2

median= 8/2

median=25 and 30

students:

mean=total of data/ total no.of data

mean=7+8+5+6+8+9/6

mean=43/6

mean=7.16

median=

ascending order

5 6 7 8 8 9

median=n/2

median=6/2

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