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What is the importance of the standard deviation?
It allows you to understand, or comprehend the average fluctuation to the average. example: the average height for adult men in the United States is about 70", with a standard deviation of around 3". This means that most men (about 68%, assuming a normal distribution) have a height within 3" of the mean (67"- 73"), one standard deviation, and almost all men (about 95%) have a height within 6" of the mean (64"-76"), two standard deviations. In summation standard deviation allows us to see the 'average' as a whole.
Average IQ US?
http://perdurabo10.tripod.com/id1048.html This article told me that the average US IQ is 98. My countries average IQ is 114 :D.
Suppose that a random sample of 400 US advertising agencies gives an average percentage share of billing volume from network television equal to 7.46 percent with a standard deviation of 1.42 percen?
Yes, I have suppose that. Then what?
Average usmle step 2 ck score?
The mean and standard deviation for first-time examinees from US and Canadian schools are approximately 226 and 223, respectively, with most scores falling between 140 and 260. 184 is required to pass.
What is the Average IQ of Canadians?
103.5 for Canadian children (which is better than us norm of 100)
