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What is the weighted mean of the scores 70, 80, 90 with weights 1, 2, 3 respecti

Practice Questions

Q1
What is the weighted mean of the scores 70, 80, 90 with weights 1, 2, 3 respectively?
  1. 80
  2. 85
  3. 90
  4. 75

Questions & Step-by-Step Solutions

What is the weighted mean of the scores 70, 80, 90 with weights 1, 2, 3 respectively?
Correct Answer: 85
  • Step 1: Identify the scores and their corresponding weights. The scores are 70, 80, and 90, and the weights are 1, 2, and 3.
  • Step 2: Multiply each score by its weight. Calculate 70*1, 80*2, and 90*3.
  • Step 3: Add the results of the multiplications together. This gives you the total weighted score.
  • Step 4: Add the weights together. This gives you the total weight.
  • Step 5: Divide the total weighted score by the total weight to find the weighted mean.
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