Question

1. which of the following is a measure of dispersion?

a. median
b. range
c. mean
d. mode

Explanation:

• Median: It is a measure of central tendency. It represents the middle - value of a data set when the data is arranged in ascending or descending order.
• Range: It is calculated as \(Range = Maximum\ value - Minimum\ value\). It measures the spread or dispersion of a data set.
• Mean: It is a measure of central tendency. It is calculated as \(\bar{x}=\frac{\sum_{i = 1}^{n}x_{i}}{n}\) (for un - grouped data), where \(x_{i}\) are the data points and \(n\) is the number of data points.
• Mode: It is a measure of central tendency. It represents the most frequently occurring value in a data set.

Answer:

B. Range