Pinging is a test to measure the reachability of a host (your computer) on an Internet Protocol (IP) network and to measure the round-trip time for the messages sent from the originating host to a destination computer. If the time is very small then it is a good connection if not then it is either your home network or your ISP. The server you download something (like movies, music) also affects the download and other factors covers as well like telecom infra structures.
Ohhh... wow I didn't know that. So if I upgrade to 16 mbps, then i should be able to download at 2 mbps right?
Yes, depending on where you are downloading from. You are not just limited by your connection but how fast the other computer can send data over to you. Just don't use mbps for both terms, MBytes / second is written as MBps (note the capital B), MBites is mbps. Your ISP gives you a bandwidth in mbps, your donwload speed will show up as MBps, which is 1/8th of that.