Taking Average Ping Times

For question 1)C)iv) where it asks to take the average from Chotchkie's PC,

Question: Do you want us to first ping all three wired devices from  Chotchkie's PC  and then take the average of all the averages added together or use one of the averages that we pinged?

Question: Do we continue to use  Chotchkie's PC to ping the wireless devices?