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LMarieee
1.There are many distributions that are approximately normal. That is, most values lie near the mean and then taper off as you move away from the mean. Identify a variable that could be described with an approximately normal distribution, and explain how you came to this conclusion. EXPLAIN .
length of leaves of a tree
because it is uniformly distributed
A classic property of this type is height (say in women), which was found to be normally distributed in some of the first studies in statistics. The explanation is that there are many factors which influence height. And there is a theorem that the mean of a sufficiently large number of "variables" is normally distributed---even if the individual variables are not normally distributed. http://en.wikipedia.org/wiki/Central_limit_theorem HTH