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Calculate the weighted mean of the numbers 10, 20, and 30 with weights 1, 2, and
Calculate the weighted mean of the numbers 10, 20, and 30 with weights 1, 2, and 3 respectively.
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Practice Questions
1 question
Q1
Calculate the weighted mean of the numbers 10, 20, and 30 with weights 1, 2, and 3 respectively.
20
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30
15
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Weighted mean = (10*1 + 20*2 + 30*3) / (1 + 2 + 3) = 140 / 6 = 23.33.
Questions & Step-by-step Solutions
1 item
Q
Q: Calculate the weighted mean of the numbers 10, 20, and 30 with weights 1, 2, and 3 respectively.
Solution:
Weighted mean = (10*1 + 20*2 + 30*3) / (1 + 2 + 3) = 140 / 6 = 23.33.
Steps: 5
Show Steps
Step 1: Identify the numbers and their corresponding weights. The numbers are 10, 20, and 30, and their weights are 1, 2, and 3.
Step 2: Multiply each number by its weight. Calculate 10 * 1, 20 * 2, and 30 * 3.
Step 3: Add the results of the multiplications together. This gives you the total: 10*1 + 20*2 + 30*3.
Step 4: Calculate the sum of the weights. Add the weights together: 1 + 2 + 3.
Step 5: Divide the total from Step 3 by the total from Step 4. This gives you the weighted mean.
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