Final answer:
The VEX EDR does not need to be powered off when connecting to a computer; it should be turned on for successful programming and communication.
Step-by-step explanation:
The statement that the VEX EDR should be powered OFF when you connect it to the computer is false. In fact, for the computer to recognize and program the VEX EDR robot, it should be powered ON during the connection. This allows the VEXnet key or the USB A-A cable to establish a link between the robot and the computer for successful communication and program downloading.