Question

Consider the following sample of numbers: \[ 9, \, 18, \, 11, \, 14, \, 15, \, 17, \, 10, \, 69, \, 11, \, 13 \] The median of the sample is:

• A. \( 13.5 \)
• B. \( 14 \)
• C. \( 11 \)
• D. \( 18.7 \)

Hint:

To find the median of an even number of values, average the two middle values.

Answer 1

The Correct Option is A

First, sort the given data in ascending order: \[ 9, \, 10, \, 11, \, 11, \, 13, \, 14, \, 15, \, 17, \, 18, \, 69 \]
Since there are 10 numbers (even count), the median is the average of the 5th and 6th values: \[ \frac{13 + 14}{2} = 13.5. \] Final Answer: \[ \boxed{13.5} \]