1.55 Distributions and appropriate statistics, Part I:  For each of the following, state whether you expect the distribution to be symmetric, right skewed, or left skewed. Also specify whether the mean or median would best represent a typical observation in the data, and whether the variability of observations would be best represented using the standard deviation or IQR.

a) Number of pets per household.

The distribution is expected to be:
A typical observation and the variability of observation are best represented by:

b) Distance to work, i.e. number of miles between work and home.

The distribution is expected to be:
A typical observation and the variability of observation are best represented by:

c) Heights of adult males.

The distribution is expected to be:
A typical observation and the variability of observation are best represented by: