It takes an average of 10 seconds to download a certain file. If the standard deviation is known σ = 1.5 seconds, what is the probability that a certain file will take between 4.75 and 15.25 seconds to download?
Added by Amber C.
Step 1
Step 1: Find the mean download time The average download time is given as 10 seconds. Show more…
Show all steps
Close
Your feedback will help us improve your experience
Tim Thornhill and 76 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
24. 4.24. Installation of some software package requires downloading 82 files. On the average, it takes 15 sec to download one file, with a variance of 16 sec². What is the probability that the software is installed in less than 20 minutes?
Kari H.
The time to download a particular photograph from a website is known to follow a uniform distribution between 5 and 13 seconds. what is the probability the picture will download in exactly 9 seconds?
Ahmet Y.
The time taken for a computer to boot up, X, follows a normal distribution with mean 30 seconds and standard deviation 5 seconds. What is the probability that a computer will take more than 42 seconds to boot up?
Steven C.
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