The sample data below shows the number of hours spent by five students over the weekend to prepare for Monday's Business Statistics exam. 3 12 2 3 5.
The interquartile range of the data is the closest to ________.
A) 4 hours
B) 6 hours
C) 10 hours
D) 12 hours

Question

Quizplus · Accepted Answer

1. Find the median: (2, 3, 3, 5, 12) → median = 3
2. Find the quartiles:
- Q1: median of the lower half (2, 3) → Q1 = 2.5
- Q3: median of the upper half (5, 12) → Q3 = 8.5
3. Find the interquartile range (IQR): Q3 - Q1 = 8.5 - 2.5 = 6. Therefore, the closest answer choice is B) 6 hours.

The Sample Data Below Shows the Number of Hours Spent