Use the following density curve to an swer questions 1-6: 0.5 0.5 1.0 1.5 20 X e

Question

Use the following density curve to an swer questions 1-6: 0.5 0.5 1.0 1.5 20 X ermine whether each of the following statements regarding this density curve is true or false 1. It is symmetric A) True Det B) False 2. The total area under the curve is 1. . A) True B) False 3. The median is 1. . A) True B) False 4·The mean is 1. A) True B) False S. For this density curve, what percent of the observations lie above 1.5? A) 25% B)50% C)75% D) 80% 6. For this density curve, what percent of the observations lie between 0.5 and 1.2? A) 25% ,B)35% C)50% D) 70%

Explanation / Answer

1-5 is correct...But 6 is incorrect

6.>the area of.5 to 1.2 is

(1.2-.5)*.5=.35

So .35*100 =35% will lie between .5 to1.2

So here B is the correct answer.

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