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anonymous
 3 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
anonymous
 3 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

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

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0no its the actual question

UnkleRhaukus
 3 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

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0but , how ? could you explain it?

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

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

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

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0there are not same mean?

UnkleRhaukus
 3 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
 3 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
 3 years ago
Best ResponseYou've already chosen the best response.1now if the means are different will this effect which is taller ?

UnkleRhaukus
 3 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
 3 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
 3 years ago
Best ResponseYou've already chosen the best response.1something like this dw:1363241494740:dw

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0so x has higher density curve ?

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0and the area under the density curve for X is less then (ii) the area under the density curve for Y .

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

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

UnkleRhaukus
 3 years ago
Best ResponseYou've already chosen the best response.1does it make senses now?
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