A community for students.
Here's the question you clicked on:
 0 viewing
yashar806
 2 years ago
A variable X follows a normal distribution with mean 10 and standard deviation 5.
Another variable Y follows a normal distribution with mean 25 and standard deviation
10. The maximum height of the density curve for X is_______ (i) the maximum height for the density curve for Y , and the area under the density curve for
X is__________ (ii) the area under the density curve for Y .
(A) (i) greater than, (ii) less than
(B) (i) less than, (ii) greater than
(C) (i) equal to, (ii) equal to
(D) (i) greater than, (ii) equal to
(E) (i) less than, (ii) less than
yashar806
 2 years ago
A variable X follows a normal distribution with mean 10 and standard deviation 5. Another variable Y follows a normal distribution with mean 25 and standard deviation 10. The maximum height of the density curve for X is_______ (i) the maximum height for the density curve for Y , and the area under the density curve for X is__________ (ii) the area under the density curve for Y . (A) (i) greater than, (ii) less than (B) (i) less than, (ii) greater than (C) (i) equal to, (ii) equal to (D) (i) greater than, (ii) equal to (E) (i) less than, (ii) less than

This Question is Closed

UnkleRhaukus
 2 years ago
Best ResponseYou've already chosen the best response.1there is something missing from your question

yashar806
 2 years ago
Best ResponseYou've already chosen the best response.1no its the actual question

UnkleRhaukus
 2 years ago
Best ResponseYou've already chosen the best response.1you have to compair the standard deviations of each curve, remember that the sum of areas under each curve is one

yashar806
 2 years ago
Best ResponseYou've already chosen the best response.1but , how ? could you explain it?

UnkleRhaukus
 2 years ago
Best ResponseYou've already chosen the best response.1dw:1363240984062:dw

UnkleRhaukus
 2 years ago
Best ResponseYou've already chosen the best response.1theses are two normal curves with the same mean , but different std.div

UnkleRhaukus
 2 years ago
Best ResponseYou've already chosen the best response.1the both have the same area ,; the sum of densities is one

yashar806
 2 years ago
Best ResponseYou've already chosen the best response.1there are not same mean?

UnkleRhaukus
 2 years ago
Best ResponseYou've already chosen the best response.1can you tell be which curve has the greatest std. div , the red or black curve

UnkleRhaukus
 2 years ago
Best ResponseYou've already chosen the best response.1right , because less of the red is as close the mean as the black

UnkleRhaukus
 2 years ago
Best ResponseYou've already chosen the best response.1now if the means are different will this effect which is taller ?

UnkleRhaukus
 2 years ago
Best ResponseYou've already chosen the best response.1right , the maximun height of the curve is only dependent of the std.div

UnkleRhaukus
 2 years ago
Best ResponseYou've already chosen the best response.1So Y has a std.div of 10 and X has a std.div of 5

UnkleRhaukus
 2 years ago
Best ResponseYou've already chosen the best response.1something like this dw:1363241494740:dw

yashar806
 2 years ago
Best ResponseYou've already chosen the best response.1so x has higher density curve ?

yashar806
 2 years ago
Best ResponseYou've already chosen the best response.1and the area under the density curve for X is less then (ii) the area under the density curve for Y .

UnkleRhaukus
 2 years ago
Best ResponseYou've already chosen the best response.1x has higher density ✓

UnkleRhaukus
 2 years ago
Best ResponseYou've already chosen the best response.1remember that the area under each density curve must sum to one

UnkleRhaukus
 2 years ago
Best ResponseYou've already chosen the best response.1does it make senses now?
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.