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In a survey, the ages of participants are: 22, 25, 25, 30, 35. What is the mean

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Question: In a survey, the ages of participants are: 22, 25, 25, 30, 35. What is the mean age?

Options:

  1. 25
  2. 26
  3. 27
  4. 30

Correct Answer: 26

Solution: 

Mean = (22 + 25 + 25 + 30 + 35) / 5 = 107 / 5 = 26.4.

In a survey, the ages of participants are: 22, 25, 25, 30, 35. What is the mean

Practice Questions

Q1
In a survey, the ages of participants are: 22, 25, 25, 30, 35. What is the mean age?
  1. 25
  2. 26
  3. 27
  4. 30

Questions & Step-by-Step Solutions

In a survey, the ages of participants are: 22, 25, 25, 30, 35. What is the mean age?
  • Step 1: Write down all the ages from the survey: 22, 25, 25, 30, 35.
  • Step 2: Add all the ages together: 22 + 25 + 25 + 30 + 35.
  • Step 3: Calculate the total: 22 + 25 = 47, then 47 + 25 = 72, then 72 + 30 = 102, and finally 102 + 35 = 137.
  • Step 4: Count how many ages there are: There are 5 ages.
  • Step 5: Divide the total sum of ages (137) by the number of ages (5): 137 / 5.
  • Step 6: Calculate the division: 137 divided by 5 equals 27.4.
  • Mean Calculation – The mean is calculated by summing all values and dividing by the number of values.
  • Data Interpretation – Understanding how to interpret and manipulate numerical data from a set.
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