Test statistics that follow a chi-squared distribution arise from an assumption of independent normally distributed data, which is valid in many cases due to the central limit theorem. A chi-squared test can be used to attempt rejection of the null hypothesis that the data are independent.
Voles, also known as mice, live in field, forest, and shrub habitats. Voles can cause extensive damage when they move into our turf and landscaped gardens in search of food and shelter. Voles do not hibernate and are active throughout the year. They can reproduce year round having many litters per year.
A vole is a small rodent resembling a mouse but with a stouter body, a shorter, hairy tail, a slightly rounder head, smaller ears and eyes, and differently formed molars.There are approximately 155 species of voles. They are sometimes known as meadow mice or field mice in North America. vole is a small rodent resembling a mouse but with a stouter body, a shorter, hairy tail, a slightly rounder head, smaller ears and eyes, and differently formed molars.