Question

how is the interquartile range calculated?
a. quartile 3 (q3) minus median
b. maximum minus minimum
c. quartile 3 (q3) minus quartile 1 (q1)
d. median minus quartile 1 (q1)

Explanation:

The inter - quartile range (IQR) is a measure of statistical dispersion. It is calculated by subtracting the first quartile (Q1) from the third quartile (Q3). This gives the range of the middle 50% of the data.

Answer:

C. Quartile 3 (Q3) minus quartile 1 (Q1)