The following graphs have no scales assigned to them. Which ones could be density curves for a continuous random variable if they were provided with the right scale? Check all that apply.

http://i56.tinypic.com/wbw611.png

Question

The following graphs have no scales assigned to them. Which ones could be density curves for a continuous random variable if they were provided with the right scale? Check all that apply. 

http://i56.tinypic.com/wbw611.png

anonymous · Answer

is this from statistics?

anonymous · Answer

pretty much, its put in with algebra 2 tho

anonymous · Answer

i just put on google images, density curves for a continuous random variable and I got this: https://www.google.ca/search?hl=en&rlz=1C1SNNT_enCA408CA409&q=density+curves+for+a+continuous+random+variable&ix=sea&bav=on.2,or.r_gc.r_pw.r_qf.,cf.osb&biw=1600&bih=775&um=1&ie=UTF-8&tbm=isch&source=og&sa=N&tab=wi&ei=9M6pT6_bIsPLgQfB6L20Cw most of the graphs look like, a, d, and e... that would my my guess lol.. just wait and see if someone actually knows exactly what your question is. Gd luck

anonymous · Answer

area nder the graph must add up to 1,by property of this graph...rest u can figure out...
just insure that area below x axis be taken negative..

anonymous · Answer

in graphs b, and c it is impossible for the area to be 1, both of the areas = 0

so yes i think what I said is correct, a, d,and e

anonymous · Answer

yeah,u r right..