Answer:
Use the following formula in L2
=IF(AND(CBFStaff[[#Headers],[Years since First Aid Certification]]>4,CBFStaff[[#Headers],[Group Leader ]]="Yes"),'Yes","No")
In this formula, nested function AND checks whether the staff member meets both the criteria. If it meets botht eh criteria, then it will return text "Yes"
If it meets only one or none of the criteria, then it will return text "No"
This formula is applicable on the data formatted as Excel Table named CBFStaff.
Header "Years since First Aid Certification" shows the staff member's Service years.
And the header "Group Leader" shows the group leader status as either "Yes" or "No"
Explanation: