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For the data set 12, 15, 12, 18, 20, what is the median?

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Question: For the data set 12, 15, 12, 18, 20, what is the median?

Options:

  1. 15
  2. 16
  3. 17
  4. 18

Correct Answer: 15

Solution: 

Median = 15, as the sorted data is 12, 12, 15, 18, 20.

For the data set 12, 15, 12, 18, 20, what is the median?

Practice Questions

Q1
For the data set 12, 15, 12, 18, 20, what is the median?
  1. 15
  2. 16
  3. 17
  4. 18

Questions & Step-by-Step Solutions

For the data set 12, 15, 12, 18, 20, what is the median?
  • Step 1: Write down the data set: 12, 15, 12, 18, 20.
  • Step 2: Sort the data in ascending order: 12, 12, 15, 18, 20.
  • Step 3: Count how many numbers are in the sorted list. There are 5 numbers.
  • Step 4: Find the middle number. Since there are 5 numbers, the middle one is the 3rd number.
  • Step 5: The 3rd number in the sorted list is 15.
  • Step 6: Therefore, the median is 15.
  • Median – The median is the middle value of a data set when it is ordered from least to greatest.
  • Data Sorting – To find the median, the data set must first be sorted in ascending order.
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