The life span of batteries is known to be normally distributed, with a mean of 2250 hours and a standard deviation of 144 hours. A) find the probability of a battery chosen at random will have a life span less than 1980 hours. B) the percent of batteries that will have a life span that over 2095 hours?
The life span of batteries is known to be normally distributed, with a mean of 2250 hours and a standard deviation of 144 hours. A) find the probability of a battery chosen at random will have a life span less than 1980 hours. B) the percent of batteries that will have a life span that over 2095 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...
Related questions
Question
The life span of batteries is known to be normally distributed , with a mean of 2250 hours and a standard deviation of 144 hours.
A) find the probability of a battery chosen at random will have a life span less than 1980 hours.
B) the percent of batteries that will have a life span that over 2095 hours?
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, probability and related others by exploring similar questions and additional content below.Recommended textbooks for you
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON