This requests the default density estimate: a normal distribution using the sample estimates as parameter values. The density curve is superimposed on the histogram, as illustrated in Figure 12.15.

A kernel density curve may follow the shape of the distribution more closely. To construct a normal kernel density curve, one parameter is required: the bandwidth .The value of determines the degree ...

Although bone mineral density (BMD) testing to screen for osteoporosis ... where this line intersects each cumulative incidence curve, a vertical dashed line to the x axis marks the estimated ...