The range of a battery of a newly produced electric vehicle is normally distributed with an average of 400 miles and a standard deviation of 20 miles. Find the probability a new vehicle off the assembly has a battery range greater than 420 miles.
Added by Stacy W.
Step 1
So, Z = (420 - 400) / 20 = 1. Show more…
Show all steps
Close
Your feedback will help us improve your experience
Wei Zhang and 84 other Intro Stats / AP Statistics educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
A an electric battery for a new electric vehicle has a range that is normally distributed with an average of 400 miles and a standard deviation of 20 miles. What percent of batteries will have a range between 380 miles and 420 miles?
T. L.
For Exercises $5-8,$ use the following information. The useful life of a certain car battery is normally distributed with a mean of $100,000$ miles and a standard deviation of $10,000$ miles. The company makes $20,000$ batteries a month. What is the probability that if you buy a car battery at random, it will last between $80,000$ and $110,000$ miles?
Probability and Statistics
The Normal Distribution
Suppose that the battery life span of a Tesla 3 is normally distributed with a mean and a standard deviation of 90,000 miles and 16,000 miles, respectively 1. What is the probability that a randomly selected Tesla 3 has its battery lasting more than 100,000 miles? If we randomly select four Tesla 3 and test them out by ourselves, what is the select probability that the average battery life span of these 4 Tesla is more than 100,000 miles? If we randomly four Tesla and test them out, what is the probability that ALL their battery last more than 100,000 miles?
Rosina D.
Recommended Textbooks
Elementary Statistics a Step by Step Approach
The Practice of Statistics for AP
Introductory Statistics
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD