Q. 1 B

# Find the range and coefficient of range of the following data.

41.2, 33.7, 29.1, 34.5, 25.7, 24.8, 56.5, 12.5

Answer :

Given the set of data 41.2, 33.7, 29.1, 34.5, 25.7, 24.8, 56.5, 12.5.

Let the maximum value in the data set be denoted by x_{max} and minimum by x_{min}

Range = Maximum value in the data set – Minimum value in the data set

= x_{max} - x_{min}

= 56.5 – 12.5

= 44

∴ Range R = 44

Let the Coefficient of Range be denoted by s.

s =

=

=

= 0.637≈0.64

∴ s = 0.64

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