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What is the weighted mean of the scores 70, 80, 90 with weights 1, 2, 3 respecti
What is the weighted mean of the scores 70, 80, 90 with weights 1, 2, 3 respectively?
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Practice Questions
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Q1
What is the weighted mean of the scores 70, 80, 90 with weights 1, 2, 3 respectively?
80
85
90
75
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Weighted mean = (70*1 + 80*2 + 90*3) / (1 + 2 + 3) = 85.
Questions & Step-by-step Solutions
1 item
Q
Q: What is the weighted mean of the scores 70, 80, 90 with weights 1, 2, 3 respectively?
Solution:
Weighted mean = (70*1 + 80*2 + 90*3) / (1 + 2 + 3) = 85.
Steps: 5
Show Steps
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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