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.
The most obvious difference between the wallaby and the kangaroo is size. As a rule, the kangaroo is generally much larger than the wallaby.The kangaroo has more height between its ankles and knees, which makes its legs seem out of proportion to its body. The kangaroo's legs are built for speed on open terrain. The wallaby's more compact legs are built for agility in forested areas.nother simple way to tell a wallaby and a kangaroo apart is by their coloring. A wallaby's coat is usually brighter with two to three different colors. For example, the unfortunately-named red-necked wallaby's grayish body is distinguished by reddish markings around its shoulders.