Fluorescent lighbulbs have lifetimes that are normally

Last updated: 4/12/2024

Fluorescent lighbulbs have lifetimes that are normally distributed with a mean of 5 9 years and a standard deviation of 1 6 years The figure below shows the distribution of lifetimes of fluorescent lightbulbs Calculate the shaded area under the curve Express your answer in decimal form with at least four decimal places Answer 4 828 9 1 Lifetines of Fluorescent Lightbulbs