=AVERAGE(IF(A2:A5="Mon",B2:B5))

Enter with Ctrl+Shift+Enter

I am assuming "Mon" is a literal (text)

"terri" wrote:

I'd like to be able to calculate the average based on a weekday to get a
runrate by day, but I'm having trouble -- below is an example

Weekday Amount
Mon 10
Tues 20
Mon 20
Tues 30

Mon -- I'd like a formula that would return a value of 15(the
(10+20)/2)

Can anyone help???

Thx