A large group of test scores is normally distributed with mean '73' and standard deviation 4. What percent of the students scored '80' or better (nearest whole percent)?
Added by Legend M.
Step 1
Plugging in the values, we get z = (80 - 73) / 4 = 1.75. Show more…
Show all steps
Close
Your feedback will help us improve your experience
Fozan Kahn and 101 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 large group of test scores is normally distributed with mean '74' and standard deviation 4. What percent of the students scored '78' or better (nearest whole percent)?
Fozan K.
A large group of test scores is normally distributed with mean '78' and standard deviation 4. What percent of the students scored '92' or better (nearest whole percent)?
A large group of test scores is normally distributed with mean '72' and standard deviation 4. What percent of the students scored '93' or better (nearest whole percent)?
Recommended Textbooks
Elementary Statistics a Step by Step Approach
The Practice of Statistics for AP
Introductory Statistics
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD