Mathematical models are used as tools to describe reality. These
models are supposed to characterize the important features of the
analyzed phenomena and provide insight. The normal distribution is
an example of a random variable that is widely used by researchers
to model real data.
Researchers often model real observations using the normal
distribution, but sometimes the real distribution is a bit
different from the perfect, normal distribution. List some
reasons why researchers might make approximations like this and
describe...