Chi-squared test for nominal (categorical) data. The c2 test is used to determine whether an association (or relationship) between 2 categorical variables in a sample is likely to reflect a real association between these 2 variables in the population.
For other uses, see Wallaby (disambiguation) . A wallaby is a small-or mid-sized macropod found in Australia and New Guinea. They belong to the same taxonomic family as kangaroos and sometimes the same genus, but kangaroos are specifically categorised into the six largest species of the family.or other uses, see Wallaby (disambiguation) . A wallaby is a small-or mid-sized macropod found in Australia and New Guinea. They belong to the same taxonomic family as kangaroos and sometimes the same genus, but kangaroos are specifically categorised into the six largest species of the family.
Similar species. The red-necked wallaby is just one of six wallaby species in New Zealand. The main differences between each of the species are the markings of their tail and fur, as well as the geographical location where each of the species is predominantly found (Table 2) (King, 1990).he main regions that red-neck wallabies can be found are New Zealand, Australia, Tasmania, and King Island and Flinders Island in Bass Straight (Long 2003). Because the wallaby was originally from Australia, the natural distribution is much greater there than in New Zealand (King, 1993).