How can I calculate the standard deviation of a data set?

The formula for the variance of a data set can be easily remembered by this catchy phrase: 'The mean of the squares minus the square of the mean'. The standard deviation is equal to the square root of the variance so square rooting the above formula will give the standard deviation.

RM
Answered by Robin M. Maths tutor

3192 Views

See similar Maths A Level tutors

Related Maths A Level answers

All answers ▸

Expand using binomial expansion (1+6x)^3


y = 6x^2 + 8x + 2. Find dy/dx


Differentiate and find the stationary point of the equation y = 7x^2 - 2x - 1.


How do you find the integral of 'x sin(2x) dx'?


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences