8. Brittany created a formula with the VLOOKUP function to look up an employee names by their employee ID. She also wants to alert users when they enter an incorrect ID number In cell 04, nest the existing VLOOKUP function in an IFERROR function. If the VLOOKUP function returns an error result, the text Invalid Employee ID should be displayed. 9. Brittany wants to determine several totals and averages for active employees. In cell 09, enter a formula using the COUNTIF function and structured references to count the number of employees who can work as lifeguards. 10. In cell R9, enter a formula using the AVERAGEIF function and structured references to determine the average number of years of experience for lifeguards. 11. In cell R10, enter a formula using the AVERAGE function and structured references to determine the average number of years of experience of all employees as shown in the Years of Experience column. Can't upload - Something's wrong and your changes can't be uploaded. Save a copy 1 SERIES HE . M The w HE 1 here RH 20 H THIS Tw I ICS . RIT DO w You You w EH Yw 8. Brittany created a formula with the VLOOKUP function to look up an employee names by their employee ID. She also wants to alert users when they enter an incorrect ID number In cell 04, nest the existing VLOOKUP function in an IFERROR function. If the VLOOKUP function returns an error result, the text Invalid Employee ID should be displayed. 9. Brittany wants to determine several totals and averages for active employees. In cell 09, enter a formula using the COUNTIF function and structured references to count the number of employees who can work as lifeguards. 10. In cell R9, enter a formula using the AVERAGEIF function and structured references to determine the average number of years of experience for lifeguards. 11. In cell R10, enter a formula using the AVERAGE function and structured references to determine the average number of years of experience of all employees as shown in the Years of Experience column. Can't upload - Something's wrong and your changes can't be uploaded. Save a copy 1 SERIES HE . M The w HE 1 here RH 20 H THIS Tw I ICS . RIT DO w You You w EH Yw