For the following groups, identify three properties with respect to which they are homogeneous and three with respect to which they are not.
a. Maple trees b. Planets c. Sweaters d. Cars e. Humans f. Shoes g. TV shows
For the following pairs of samples and targets, identify one property with respect to which the sample is representative of the target, and one property with respect to which it is not.
a. Ten people waiting for a bus; users of the city’s public transit system
b. Ten people waiting for a bus; residents of the city
c. About 1500 Americans responding to an online survey; Americans in general
d. Three mice; all mice
e. Three mice; humans
f. Five randomly selected cars; all cars
g. Five randomly selected cars; manufactured products
h. US companies; worldwide companies
