Which is the formula for range? (a) H+L
(b) L-H
(c) L×H
(d) H-L
✅ Correct option: (d) H − L
Explanation:
The range is the simplest measure of variability and is calculated by subtracting the lowest value (L) from the highest value (H). The formula is Range = H − L. Range provides a quick estimate of how spread out the data are but does not reflect how values are distributed between the extremes. While easy to calculate, range is highly sensitive to outliers and is rarely used alone in advanced analysis.
10 Related PPSC Facts:
Range measures spread. Uses only two values. Affected by extreme scores. Simple to calculate. Range = highest − lowest. Weak measure of variability. Often paired with other measures. Gives rough dispersion idea. Does not use all data. Common in basic statistics.