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What is the percentage error if the measured value is 20 and the true value is 2
What is the percentage error if the measured value is 20 and the true value is 25? (2021)
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Practice Questions
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Q1
What is the percentage error if the measured value is 20 and the true value is 25? (2021)
20%
25%
5%
10%
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Percentage error is calculated as (|True Value - Measured Value| / True Value) * 100 = (|25 - 20| / 25) * 100 = 20%.
Questions & Step-by-step Solutions
1 item
Q
Q: What is the percentage error if the measured value is 20 and the true value is 25? (2021)
Solution:
Percentage error is calculated as (|True Value - Measured Value| / True Value) * 100 = (|25 - 20| / 25) * 100 = 20%.
Steps: 5
Show Steps
Step 1: Identify the measured value and the true value. Here, the measured value is 20 and the true value is 25.
Step 2: Subtract the measured value from the true value to find the difference. Calculate |25 - 20| which equals 5.
Step 3: Divide the difference by the true value. So, calculate 5 / 25.
Step 4: Multiply the result from Step 3 by 100 to convert it to a percentage. So, (5 / 25) * 100 equals 20.
Step 5: The final answer is the percentage error, which is 20%.
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