That didn't work for me.

I bet you meant:
=SUM(COUNTIF(A1:A25,{"Red","Blue"}))
(not an array formula)

Alan Beban wrote:

Gary''s Student wrote:
=COUNTIF(A1:A25,"Red")
=COUNTIF(A1:A25,"Blue")

Or simply =COUNTIF(A1:A25,{"Red","Blue"}) array entered into a
two-column row.

Alan Beban

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Dave Peterson