MATH 134 -- Intensive Calculus For Science 2
March 18 -- Histograms to probability densities
This is our class's height histogram (graph representing
the distribution of heights of the 20 students in class on Friday, March 15).
The variable h is height (in inches), the vertical axis is the fraction of the class having
that height.
plotting commands
> display({hplot,gplot,lplot});
So for example, by considering areas, from this we can see that
* .15 of the class, or three people, have height
* .25 of the class, or 5 people, have height and
* If a person was selected at random from the class, there would be a
probability of .3 (or 30%), that the person had height and