Question

Given the following set of data, what is the range 12 23 34 54 21 8 9 67:

• A. 55
• B. 59
• C. 8
• D. 56

Answer 1

The correct option is A 55

Range is defined as the difference between the highest(or largest ) and lowest(or smallest) observed value in a series. It is the most simple and commonly understandable measures of dispersion. Therefore, it is the most affected measures of dispersion by the extreme values of the series.

Range = H - L

In the given series, H= 67 and L= 12

Range = 67 -12 = 55 .