Change averageifs to countif over several data points

On my analysis tab, how do I change this formula to countif - so I can see the number of participants per age per fruit.
=IFERROR(AVERAGEIFS(Data!$G:$G,Data!$B:$B,">="&$K25,Data!$B:$B,"<="&$L25,Data!$D:$D,E$23
For cell F25

And then for the overall formula, same how do I change to a countif
=IFERROR(AVERAGEIFS(Data!$G:$G,Data!$B:$B,">="&$K$25,Data!B:B,"<="&$L$25),"")

In general COUNTIFS works in the same way as AVERAGIFS

e.g. For Age 6-8 Apples you'd use

Formula:

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For the overall total just remove the third criteria Data!D:D,Analysis!$E$23