Excel formula to check if a range of data are all exactly same

Question

I have a range of cell values. I want to check this range of values and return true if all the values are exactly the same and return false if at least 1 is not the same.

Range 1
Confirmed
Confirmed
Confirmed

Result= Confirmed

Range 2
Confirmed
Negotiation
Confirmed

Result = Varies

ETA: Thanks simoco for the answer which I'm using now. I have a follow-up question. How do I modify this formula to ignore blank cells instead of defaulting to FALSE? With your formula, when it evaluates a range of blank cells (that are waiting for input), it returns "Varies". I want it to return blank instead.

Answer 1

Try this formula:

=IF(COUNTIF(A1:A3,A1)=COUNTA(A1:A3),"Confirmed","Varies")