How do you find the mean of 5 values?

As a general rule of thumb, to find the mean of a given set of numbers:

add up all the numbers youve been given and divide by the number of values you have.

e.g.

Find the mean of these values: 5, 10, 8, 9, 20.

so add them up:  5+10+8+9+20 = 52

and divide by the number of values : 52/5 = 10.4

if your mean value has to be one of the given values and not somewhere inbetween then round to the nearest, here it would be 10.

OP

Related Maths GCSE answers

All answers ▸

How do I solve the inequality 7x+2 > 2x-3?


A new car costs £12,000. It decreases in value by 5% each year for the first 5 years and then increases in value by 2% after that. How much does it cost after 7 years?


Express 56 as the product of its prime factors.


A right angled triangle has two smaller sides length 3 and 4, what is the length of its longest side?