You can use this for "Art"...

=SUMPRODUCT((A$2:A$100="Art")*(B$2:B$100))/COUNTIF(A$2:A$100,"Art")

and, by changing the 2 occurrences of "Art" to "Maths", get the average for
that subject instead. You could also put the subject name in a cell, say C1,
and get the average using that reference instead...

=SUMPRODUCT((A$2:A$100=C1)*(B$2:B$100))/COUNTIF(A$2:A$100,C1)

Rick


"Nick Horn" wrote in message
...
I have a spread shett which is recording lesson observation data e.g.

Subject Grade
Art 3
Maths 1
Art 4
Maths 2
Art 2

I want to get the spreadsheet to avaerage the grades for each subject
seprately e.g. Art 2
Maths 1.5
Does anyone have any ideas what formula(s) I should use.

Many thanks

Nick Horn