Question

a student estimates the length of a room to be 20 feet. The actual length is 20.25 feet. What is the percent error?

Answer 1

Percent error=1.23%

Explanation:

We are given that

Estimate length of room=20 feet

Actual length of room=20.25 feet

We have to find the percent error.

To find the percent error we will find the difference between the estimate length and actual length of room.

Difference=Actual length of room-Estimate length of room

Difference=20.25-20

Difference=0.25 feet

Now,

Percent error=
`(Difference)/(actual\;length)* 100`

Percent error=
`(0.25)/(20.25)* 100`

Percent error=1.23%