What is the variance of the following numbers: 1, 1, 1, 1, 1?

Practice Questions

Q1
What is the variance of the following numbers: 1, 1, 1, 1, 1?
  1. 0
  2. 1
  3. 2
  4. 3

Questions & Step-by-Step Solutions

What is the variance of the following numbers: 1, 1, 1, 1, 1?
  • Step 1: Write down the numbers: 1, 1, 1, 1, 1.
  • Step 2: Find the average (mean) of these numbers. Since all numbers are the same, the average is 1.
  • Step 3: Subtract the average from each number: 1 - 1 = 0 for each number.
  • Step 4: Square each of these results: 0^2 = 0 for each number.
  • Step 5: Find the average of these squared results. Since all squared results are 0, the average is 0.
  • Step 6: The variance is the average of the squared differences, which is 0.
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