From the following data, calculate (1) range, (i) co-efficient of range
Markus
0-110 10-20 20-30 30-40 40-50 50.60
No. of Student
10
15 25 30 25
20
Answers
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0
Answer:
Solution
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x
m
= Mid value of highest class = 45
x
o
= Mid value of lowest class = 5
Therefore,
Range = x
m
−x
o
=45−5=40
Coefficient of range =
x
m
+x
o
x
m
−x
o
=
45+5
45−5
=
50
40
=
5
4
=0.8
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