Question:
1 A certain electric car company claims publicly that their
Last updated: 3/16/2023

1 A certain electric car company claims publicly that their car batteries will last for at least 300 000 miles An internal study done by the company showed that the lifespans of their car batteries followed a normal probability distribution with a mean lifespan of 400 000 miles and a standard deviation of 60 000 miles What percent of their car batteries will fail to meet the public claim of lasting at least 300 000 miles Round to the nearest tenth of a percent