A battery manufacturer is testing two different prototypes of rechargeable batteries, A and B, that could be implemented for a new line of consumer-grade rechargeable batteries. The research team conducted a test with 10 AA batteries from each prototype to drain and recharge each battery until they could no longer take a charge. The number of cycles is recorded and provided in the accompanying samples. Each prototype has a battery that took 495 charges.


Required:

For which prototype is it more unusual to have a battery that takes 495 charges?