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The mean of 8, 12, 16, and 20 is what? (2019)

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Question: The mean of 8, 12, 16, and 20 is what? (2019)

Options:

  1. 14
  2. 15
  3. 16
  4. 17

Correct Answer: 15

Exam Year: 2019

Solution: 

Mean = (8 + 12 + 16 + 20) / 4 = 56 / 4 = 14.

The mean of 8, 12, 16, and 20 is what? (2019)

Practice Questions

Q1
The mean of 8, 12, 16, and 20 is what? (2019)
  1. 14
  2. 15
  3. 16
  4. 17

Questions & Step-by-Step Solutions

The mean of 8, 12, 16, and 20 is what? (2019)
  • Step 1: Add all the numbers together: 8 + 12 + 16 + 20.
  • Step 2: Calculate the sum: 8 + 12 = 20, then 20 + 16 = 36, and finally 36 + 20 = 56.
  • Step 3: Count how many numbers there are: There are 4 numbers (8, 12, 16, 20).
  • Step 4: Divide the total sum by the number of numbers: 56 divided by 4.
  • Step 5: Calculate the division: 56 / 4 = 14.
  • Mean Calculation – The mean is calculated by summing all values and dividing by the number of values.
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