# Excel/array formula

Question
Hi Tom

I type “7 Elm” into cell “c1508”.  In range “i5:i363” there is a list of scores for students in a variety of classes.  The list of classes is in range “b5:b363”.   I wish to write a formula that will calculate the average score for “7 Elm”.  Could you write the formula that would achieve this?

Chris Mitchell

Christopher Mitchell,

=SUMIF(\$B\$5:\$B\$363,\$C\$1508,\$I\$5:\$I\$363)/COUNTIF(\$B\$5:\$B\$363,\$C\$1508)

or just
=AVERAGEIF(\$B\$5:\$B\$363,\$C\$1508,\$I\$5:\$I\$363)

Neither of these are Array formulas.  If you really want an array formula, post back.

--
Regards,
Tom Ogilvy
Questioner's Rating
 Rating(1-10) Knowledgeability = 10 Clarity of Response = 10 Politeness = 10 Comment Thank you again.

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#### Tom Ogilvy

##### Expertise

Selected as an Excel MVP by Microsoft since 1999. Answering Excel questions in Allexperts since its inception in 2001. Able to answer questions on almost all aspects of Excel's internal capabilities. If seeking a VBA solution, please specify that in your question itself so I give you the answer you want. [Excel has weak protection - if you are distributing an application, I don't answer questions on how to protect your project from your users.]

##### Experience

Extensive experience.

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Master of Science (MS) degree Operations Research (ORSA)

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Microsoft MVP in Excel.