[IMG]http://s17.postimg.org/5gmfyrcv3/IMG_0253_1.jpg[/IMG]

http://s17.postimg.org/5gmfyrcv3/IMG_0253_1.jpg
http://s17.postimg.org/5gmfyrcv3/IMG_0253_1.jpg
http://s17.postimg.org/5gmfyrcv3/IMG_0253_1.jpg

i'm having a hard time figuring out #11.. help? The answer is already provided (which is 7.5)
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sorry idk how to embed pics

This post was edited by festiveger on Nov 8 2013 10:50pm

Ideally you should expect 47.7% (= 34.1% + 13.6%) between mu and mu - 2*sigma . The problem gives a value of 47.5%, close enough to 47.7% to consider ~2*sigma .

(100 - 85) / 2 = 7.5


You should expect images to show when your post count is above 25 if I'm correct.