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Difficulty: EasyMeasures of Central Tendency

A student recorded the number of books they read each month over a five-month period: 1212, 77, 1919, 44, and 1313. What is the median number of books read per month?

  1. A
    11
  2. 12Answer
  3. C
    15
  4. D
    19

Answer

12
The median is the middle value of an ordered dataset. When the numbers are ordered from least to greatest (4,7,12,13,194, 7, 12, 13, 19), the middle value is 1212.

Step-by-Step Solution

1
Sort the data set in ascending order.
4,7,12,13,194, 7, 12, 13, 19
The median must be found from a properly ordered list of numbers.
2
Identify the middle number in the sorted list.
The 3rd number is 1212.
Since there are 55 numbers (an odd amount), the median is exactly the middle value.

Key Concept

Median
Estimated Time:45s
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Topics

Measures of Central Tendency

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