starreee
starreee
04.11.2020 • 
Mathematics

PRACTICE ANOTHER The lifetime of a certain type of battery is normally distributed with mean value 11 hours and standard deviation 1 hour. There are nine batteries in a package. What lifetime value (in hours) is such that the total lifetime of all batteries in a package exceeds that value for only 5% of all packages

Solved
Show answers

Ask an AI advisor a question