Calculating Average of Certain Cells

[Tags]

I want to find the average time of cells that only have X in them. For
example:
Name Comercial TIME
Belair X 0:30
York 0:15
Dulaney X 0:45
Providence 0:15
Joppa X 0:55

What formula do I use?

 

[Mike H]

Hi,

Try this ARRAY formula

=AVERAGE(IF(B1:B20="X",C1:C20))

This is an array formula which must be entered by pressing CTRL+Shift+Enter
'and not just Enter. If you do it correctly then Excel will put curly brackets
'around the formula {}. You can't type these yourself. If you edit the formula
'you must enter it again with CTRL+Shift+Enter.

Mike

 

[Bernard Liengme]

MikeH has given you a great answer but if you are using Excel 2070 a better
way is to use AVERAGEIF which does not need to be array entered
best wishes

 

[FSt1]

hi
how about 2 formulas in one.....
=SUMIF(B2:B10,"X",C2:C10)/COUNTIF(B2:B10,"X")

adjust ranges to suit
Regards
FSt1

 

[Tags]

It didn't work. It didn't put the {} around it. I did what you said to do.
Do I have to change the format of the X cells to text or number?

 

[Mike H]

Hi.

Paste the formula in to formula bar and alter the ranges to suit your needs
THEN
press and hold down CTRL and SHIFT key and tap ENTER

Mike

 

[Tags]

Thanks. It worked!!! I was hitting CTRL, SHift and Enter before I entered
the formula. WOOOOOOOOOHOOOOOOOOOO!!!!

 

[Mike H]

You seem please, glad I could help

Thanks. It worked!!! I was hitting CTRL, SHift and Enter before I entered
the formula. WOOOOOOOOOHOOOOOOOOOO!!!!