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If the ages of a group of friends are: 22, 24, 26, 28, 30, what is the mean age?

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Question: If the ages of a group of friends are: 22, 24, 26, 28, 30, what is the mean age?

Options:

  1. 24
  2. 26
  3. 28
  4. 30

Correct Answer: 26

Solution: 

Mean = (22 + 24 + 26 + 28 + 30) / 5 = 130 / 5 = 26.

If the ages of a group of friends are: 22, 24, 26, 28, 30, what is the mean age?

Practice Questions

Q1
If the ages of a group of friends are: 22, 24, 26, 28, 30, what is the mean age?
  1. 24
  2. 26
  3. 28
  4. 30

Questions & Step-by-Step Solutions

If the ages of a group of friends are: 22, 24, 26, 28, 30, what is the mean age?
  • Step 1: Write down the ages of the friends: 22, 24, 26, 28, 30.
  • Step 2: Add all the ages together: 22 + 24 + 26 + 28 + 30.
  • Step 3: Calculate the total: 22 + 24 = 46, then 46 + 26 = 72, then 72 + 28 = 100, and finally 100 + 30 = 130.
  • Step 4: Count how many ages there are: There are 5 ages.
  • Step 5: Divide the total sum of ages (130) by the number of ages (5): 130 / 5.
  • Step 6: Calculate the result: 130 divided by 5 equals 26.
  • Mean Calculation – The mean is calculated by summing all values and dividing by the number of values.
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