Question

which of the following is a measure of dispersion?
a. mode
b. range
c. median
d. mean

Explanation:

• Mode: It is the most frequently occurring value in a data set. It is a measure of central tendency, not dispersion.
• Range: It is calculated as \( \text{Range}=\text{Maximum value}-\text{Minimum value}\). It shows the spread of data, so it is a measure of dispersion.
• Median: It is the middle - value of an ordered data set. It is a measure of central tendency.
• Mean: It is calculated as \( \text{Mean}=\frac{\sum_{i = 1}^{n}x_{i}}{n}\). It is a measure of central tendency.

Answer:

B. Range