3. statistical average is
called:

statistics, an average is defined as the number that measures the central tendency of a given set of numbers. There are a number of different averages including but not limited to: mean, median, mode and range.

choose a repair option

beware of counterfeit parts

some counterfeit and third party power adapters and batteries may not be designed properly and could result in safety issues. to ensure you receive a genuine apple battery during a battery replacement, we recommend visiting an apple store or apple authorized service provider. if you need a replacement adapter to charge your apple device, we recommend getting an apple power adapter.

also non-genuine replacement displays may have compromised visual quality and may fail to work correctly. apple-certified screen repairs are performed by trusted experts who use genuine apple parts.