Light
collapse
Practice Quizzes
AP Statistics
Unit 4 – Probability, Random Variables, and Probability Distributions
Topic 4.9
A random variable, X, has a mean of 5 and a standard deviation of 3. If you transform X by multiplying each value by a constant of 6, what is the mean and standard deviation of the transformed variable, Y?
The mean of Y is 30, and the standard deviation of Y is 3.
The mean of Y is -1, and the standard deviation of Y is -3.
The mean of Y is 30, and the standard deviation of Y is 18.
The mean of Y is 5, and the standard deviation of Y is 18.
Related content
Practice quizzes
Practice this subject
Practice this unit
Practice this topic
Study guides (1)
AP Statistics - 4.9 Combining Random Variables
Key terms
Mean
Random Variable
Standard Deviation
Transformed Variable
About Us
About Fiveable
Blog
Careers
Testimonials
Code of Conduct
Terms of Use
Privacy Policy
CCPA Privacy Policy
Resources
Cram Mode
AP Score Calculators
Study Guides
Practice Quizzes
Glossary
Crisis Text Line
Request a Feature
Report an Issue
Stay Connected
© 2024 Fiveable Inc. All rights reserved.
AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.
About Us
About Fiveable
Blog
Careers
Testimonials
Code of Conduct
Terms of Use
Privacy Policy
CCPA Privacy Policy
Resources
Cram Mode
AP Score Calculators
Study Guides
Practice Quizzes
Glossary
Crisis Text Line
Request a Feature
Report an Issue
© 2024 Fiveable Inc. All rights reserved.
AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.
Back
Practice Quiz
Guides
Glossary
Guides
Glossary
Next