Math 132A

Histograms

A Continuous Numerical Variable

1.274.1311.34811.2610.093.1410.312.5514.690.314.984.217.538.186.7213.9610.566.572.296.795.376.033.944.90.186.784.992.576.380246810121416

Constructing a Histogram

Histogram

12345670246810121416binwidthbinboundariesbincenters34672521bincountsHowmanynumbersarebetween4and6?Howmanynumbersarelessthan10?Howmanynumbersaregreaterthan6?Howmanynumbersarethere?Howmanynumbersarelessthan7?

Histogram Shapes: Uniform

Histogram Shapes: Bell

Histogram Shapes: Bi-modal

Histogram Shapes: Right Skew

Histogram Shapes: Left Skew

In R

gf_histogram(~x, data = data, binwidth = .06,
             boundary = 0, color="black")