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.
RED-NECKED WALLABY. Macropus rufogriseus. One of the largest species of wallaby, they are sometimes mistaken for kangaroos. They are distinguished from other species by their black nose and paws, white stripe on the upper lip, and grizzled medium grey coat with a reddish wash across the shoulders.ne of the largest species of wallaby, they are sometimes mistaken for kangaroos. They are distinguished from other species by their black nose and paws, white stripe on the upper lip, and grizzled medium grey coat with a reddish wash across the shoulders.