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 one year 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
 one year 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
 one year ago
Best ResponseYou've already chosen the best response.1there is something missing from your question

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

UnkleRhaukus
 one year 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
 one year ago
Best ResponseYou've already chosen the best response.1but , how ? could you explain it?

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

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

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

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

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

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

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

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

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

yashar806
 one year 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
 one year ago
Best ResponseYou've already chosen the best response.1x has higher density ✓

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

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