Power Consumption for BLE advertisements
BLE devices send out an advertisement to indicate that the are looking for a connection. There are three advertisement channels so each advertisement consists of three transmissions with a variable delay between channels.

I would approach the first requirement by capturing the current draw for one advertisement (3 channels plus delays).  Average the current readings over this period. Multiply this by the battery voltage. You now have the average power consumption per BLE advertisement. Create a graph showing this amount of power  on the Y axis multiplied by the number of BLE advertisements on the X axis.

For example, if the average power per BLE advertisement is 250 microwatts, 10 BLE adverts would show 2.5 milliwatts, 100 adverts would show 25 milliwatts, etc.

The second requirement can be approached in the same fashion. Sample the current during the connect attempt and failure. Average this current. Mutiply by the voltage. Plot in the same fashion with connect attempts on the X axis.

There are lots of great resources on the Web that give simple explanations of the BLE protocol if you need a better understanding of the BLE mechanisms.