A certain brand of batteries has a lifetime that has a normal distribution with a mean of 3,750 hours and a standard deviation of 300 hours. What lifetime should the manufacturer advertise for these batteries in order that only 2 of the lamps will wear out before the advertised lifetime?
Question 2
A certain brand of batteries has a lifetime that has a normal distribution with a mean of 3,750 hours and a standard deviation of 300 hours. What proportion of these batteries will last between 3,800 and 4,100 hours?
Blood vessels: (A) normal artery, (B) constriction, and (C) arteriosclerosis and atherosclerosis.
Normal Faults Common at divergent plate boundaries
Distribution of the Ceboidea, or New World monkeys.
A scope display showing a normal Chevrolet Equinox MAF sensor at idle speed. the frequency is 2,600 ...
Geographic distribution of hepatitis A prevalence (anti-HAV-antibody), 2005.
Normal Liver