Calculate QD from the following data 10 15 20 25 30 4035
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Explanation:
Here,
Highest value (H)= 35
Lowest value (L) = 15
Range= Highest value − Lowest value
i.e. R= H− L
Substituting the given values in the formula
R= 35 − 15= 20
Coefficient of Range is as follows:
CR =
H-L
H+L
or, CR =
35-15
35+15
=
20
50
⇒ CR =0.4
Hence, the range (R) of the above data is 20 and coefficient of Range (CR) is 0.4
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