The amount of time a certain brand of light bulb lasts is normally distributed with a mean of 1200 hours and a standard deviation of 100 hours. Using the empirical rule, what percentage of light bulbs last between 1100 hours and 1300 hours?

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
icon
Related questions
Question
100%
The amount of time a certain brand of
light bulb lasts is normally distributed
with a mean of 1200 hours and a standard
deviation of 100 hours. Using the
empirical rule, what percentage of light
bulbs last between 1100 hours and 1300
hours?
Answer:
Submit Answer
Transcribed Image Text:The amount of time a certain brand of light bulb lasts is normally distributed with a mean of 1200 hours and a standard deviation of 100 hours. Using the empirical rule, what percentage of light bulbs last between 1100 hours and 1300 hours? Answer: Submit Answer
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps with 1 images

Blurred answer
Similar questions
Recommended textbooks for you
A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON
A First Course in Probability
A First Course in Probability
Probability
ISBN:
9780321794772
Author:
Sheldon Ross
Publisher:
PEARSON