Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (dbzfan836):
Well, no, but you can ask any question you like if it fits the subject, like for here, ask anything related to math.
OpenStudy (jessicawade):
im just looking fro some tutor help im in highschool
OpenStudy (jessicawade):
im in advanced algebra
OpenStudy (dbzfan836):
I can, but @Broskishelleh would also be of assistance
OpenStudy (jessicawade):
ok
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (jessicawade):
so i have a question and my math teacher refuses to reply, i am HORRIBLE at math and here goes nothing.
OpenStudy (jessicawade):
2.Find the z score that corresponds to P99, the 99th percentile of a standard normal distribution curve.
A. 2.33
B. 0.01
C. 0.99
D. –2.33
OpenStudy (jessicawade):
D -2.33*
OpenStudy (jessicawade):
i just started learning this today
OpenStudy (dbzfan836):
@satellite73
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (jessicawade):
i know that z-score is value-mean
-----------
standard distribution
OpenStudy (jessicawade):
sorry im stupid lol
OpenStudy (dbzfan836):
@undeadknight26
OpenStudy (dbzfan836):
this I dont know but maybe broskishelleh does
OpenStudy (jessicawade):
ok
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (dbzfan836):
@adrynicoleb
OpenStudy (jessicawade):
@Broskishelleh
OpenStudy (broskishelleh):
You are correct except for the fact it isn't negative. The 99th percentile is 2.33 alone.
OpenStudy (jessicawade):
oh how so? i dont know how to find the percentile
OpenStudy (broskishelleh):
Z-Score Table:
http://math.tutorvista.com/statistics/z-score-table.html
The percentiles go as so:
the 99th percentile is found in much the same way.
find a close number to .99 => I find a .9901,
The row has the number 2.3, the column has .03,
this means the z-score is 2.33.
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (jessicawade):
lost lol
OpenStudy (broskishelleh):
Look at the table
OpenStudy (jessicawade):
actually nvm i got it now
OpenStudy (jessicawade):
1. Find z0.05.
A. 0.4801
B. -1.645
C. 1.645
D. 0.5199
OpenStudy (broskishelleh):
Use the table again
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (jessicawade):
i dont understand this one at all :/
OpenStudy (broskishelleh):
Alright the top bar shows 0.05, right?
OpenStudy (broskishelleh):
Find a, b, c or d in that row
OpenStudy (jessicawade):
ohhh
OpenStudy (jessicawade):
i didnt find it
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (broskishelleh):
no? whmmmm
OpenStudy (broskishelleh):
Well it is C
OpenStudy (jessicawade):
yeah i was going to say that
so whenever we need the table do we just find the closest number or what