Question

Rich measured the height of a desk to be 80.7 cm. The actual height of the desk is 80 cm. What is Rich's percent error in this calculation? Type your answer as a percentage, rounded to the nearest tenths place.

Answer 1

0.9%

Explanation:

We have been given that Rich measured the height of a desk to be 80.7 cm. The actual height of the desk is 80 cm.

We will use percentage error formula to solve our given problem.

`\text{Percentage error}=\frac{\text{Experimental value-Actual value }}{\text{Actual actual}}* 100`

`\text{Percentage error}=(80.7-80)/(80)* 100`

`\text{Percentage error}=(0.7)/(80)* 100`

`\text{Percentage error}=0.00875* 100`

`\text{Percentage error}=0.875\approx 0.9`

Therefore, Rich's percent error in calculation is 0.9%.