When learning about statistic measures of spread we fell on a very important subject as a class, standard deviation. A subset within standard deviation that I think is even more vitally important is normal distribution, or a bell curve. Having an understanding on this concept is vital to connecting knowledge of statistics to the world around you. For instance IQ is heavily based on how many standard deviation off the norm you stand. The average IQ score of 100 for example, represents a score in which 50 percent of the population scores higher than, and 50 percent scores lower than. Nature pretty accurately results in the bell curve as well. For instance a population has a wide array of outcomes in something such as eye sight, some members have perfect vision while others are left blind, but of course a majority lie somewhere in between. A helpful hint as to the percent of a population within the subsets of a a given standard deviation is 68/95/99.7 , What these values represent is ho...
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