ACCT352 Lecture 8: Lecture 8
12 Feb 2017
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Document Summary
Helpful for comparing values from different distributions. Density curve is a curve hat: is always on or above the horizontal axis(density>0, has area exactly 1 underneath it. Example: the curve below shows he density curve for scores in an exam and the area of the shaded region is the proportion of students who scored between 60 and 80. An important class of density curves are the symmetric unimodal bell-shaped curves known as normal curves. All normal distributions have the same overall shape. The density curve for a particular normal distribution is specified by giving the mean and the standard deviation. The mean is located at the center of the symmetric cure and is the same as the median (and mode) The standard deviation controls the spread of a normal curve. To identify a curve is through and equation. The normal density curves are specified by a particular equation.
