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If the data set is 10, 20, 30, 40, 50, what is the mean?

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Question: If the data set is 10, 20, 30, 40, 50, what is the mean?

Options:

  1. 30
  2. 25
  3. 40
  4. 35

Correct Answer: 30

Solution: 

Mean = (10 + 20 + 30 + 40 + 50) / 5 = 150 / 5 = 30

If the data set is 10, 20, 30, 40, 50, what is the mean?

Practice Questions

Q1
If the data set is 10, 20, 30, 40, 50, what is the mean?
  1. 30
  2. 25
  3. 40
  4. 35

Questions & Step-by-Step Solutions

If the data set is 10, 20, 30, 40, 50, what is the mean?
  • Step 1: Write down all the numbers in the data set: 10, 20, 30, 40, 50.
  • Step 2: Add all the numbers together: 10 + 20 + 30 + 40 + 50.
  • Step 3: Calculate the total: 10 + 20 = 30, 30 + 30 = 60, 60 + 40 = 100, 100 + 50 = 150.
  • Step 4: Count how many numbers are in the data set. There are 5 numbers.
  • Step 5: Divide the total (150) by the number of values (5): 150 / 5.
  • Step 6: Calculate the result: 150 divided by 5 equals 30.
  • Mean Calculation – The mean is calculated by summing all the values in a data set and dividing by the number of values.
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