Need help with this excel problem. I have tried everything I can to fix the function but I can't figure it out.

Clipboard Font Alignment AVERAGE x LOOKUP(E10,A$6:B$10) 1 5. Lookup (Troubleshoot Troubleshoot the formula to produce an accurate grade appointment using the "lookup" function. The error is not necessarily with the function, but with the input to the function. Use the help command to help you diagnose the formula 2 4 Grade Distribution Students Grade 83 F 72 F 91 F 93 F 49 LOOKUP 68, #N/A Percent Letter Grade Name Jenny Freddy Sandy Pat Johnny Jimmy Percent 70 10 12