The article cited in Exercise 20 also gave the following values of the variables y = number of culs-de-sac and z = number of intersections:

a. Construct a histogram for the y data. What proportion of these subdivisions had no culs-de-sac? At least one cul-de-sac?
b. Construct a histogram for the z data. What proportion of these subdivisions had at most five intersections? Fewer than five intersections?

Transcribed Image Text:

y 101 00201 20011 01 1 z 186115 3 004400121404 y1 1 0 0011201 22102 10 z 0301101 3 2 4660118 33 5 y 1 5 0 3011 0 0 z0523100 03