Ask your own question, for FREE!
Mathematics 10 Online
OpenStudy (anonymous):

A person received a test score that was in the top 20% of everyone who has taken the test. The test scores are normally distributed. The persons Z score must be at least??

OpenStudy (anonymous):

-9.68, 9.68, 59. 68, 99.68

OpenStudy (anonymous):

If someone can explain how to do the steps?

OpenStudy (anonymous):

I think you multiply 20% by the numbers. Which everyone is above 100% may be the answer.

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Latest Questions
Arriyanalol: i need help
2 days ago 7 Replies 1 Medal
Arriyanalol: CONGRATS to me
2 days ago 8 Replies 2 Medals
Legomaster346: What colleges are good that are near Arab Alabama?
1 week ago 5 Replies 0 Medals
Arriyanalol: i need help
1 week ago 6 Replies 2 Medals
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!