Calculating MBPS - Average
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I have found below calculation from http://www.gridsouth.com/services/colocation/basics/bandwidth
I have no idea how they came up with final number 1.395 mbps. Can you please help me with the formula used in below example?

**If your network provider bills you on average usage, let's say they sample your MBPS usage 100 times in one month (typically it would be more like every 5 minutes) and of those samples your network usage was measured as follows: 20 times: .1 MBPS, 30 times .1.5 MBPS, 30 times 1.8 MBPS, 15 times 1.9 MBPS and 5 times at 2 MBPS. If you average all these samples you would be billed at whatever the price is in your contract for 1.395 MBPS bandwidth.** 