HSC Together Year 11 Maths Standard: Measurement Errors

Maths Standard

Back to other subjects

Measurement Errors

What are Measurement Errors?

There are varying degrees of instrument error and measurement uncertainty when measuring. Every time a measurement is repeated, a slightly different result will be obtained. It is important you understand the following calculations: 

  • Precision: the smallest unit on measuring instrument or limit of reading
  • Absolute error: measured value – actual value or 1/2 x precision
  • Upper bound: measurement + absolute error
  • Lower bound: measurement – absolute error
  • Relative error: absolute error / measurement
  • Percentage error: (absolute error / measurement) x 100

 

What are the Different Terms and How do We Solve Them?

The videos below explain the different definitions in more detail and how to find them when given a measurement.

Part 1:

 

Part 2:

 

How to Calculate Relative Error and Percentage Error

The following video explains how to calculate relative and percentage errors when given a measurement.

 

How to Further Calculate Different Measurement Errors

The following videos complete further examples of calculating measurement errors.

Part 1:

 

Part 2:

 

Want to learn more? Check out more of our Preliminary Standard Math resources here!

45,861 students have a head start...

Get exclusive HSC content & advice from our team of experts delivered weekly to your inbox!

Here’s how we help...

Holistic K-12 Tutoring

Attend our master-class workshops on how to ace your essays, assessments and exams!

Comprehensive Workshops

Attend our master-class workshops on how to ace your essays, assessments and exams!

AOS asset - Rocket

Study, Uni, Career Mentoring

Attend our master-class workshops on how to ace your essays, assessments and exams!

Senior School Workshops

Attend our master-class workshops on how to ace your essays, assessments and exams!

45,861 students have a head start...

Get exclusive study content & advice from our team of experts delivered weekly to your inbox!

AOS Website Asset 2

Looking for Academic Support?

Discover how we can help you!

AOS Website Asset 1