The effects of different choices of response variable are explored. Ecological sampling methods for spatial patterns are considered. Sampling techniques, which involve random placings of a quadrat on soil, are explored. The Poisson probability model is used for analysis. I - An Introduction to Statistics Assessment of pollution levels can be made using measurements taken from the feathers of birds.
Heavy metals enter the environment from a variety of sources.
Many of these elements accumulate throughout the food chain and reach higher concentrations in some organisms than are found in the environment. Birds can eliminate pollutants either through excretion or by sequestering them in feathers or eggs. Because birds replace feathers at least annually, there should be no age-related difference in the concentrations of pollutants. The pollution theme will be further developed by providing students with the opportunity to choose the correct test and develop the ability to interpret the result. In many villages in Kenya, wheat and maize are grown as subsistence crops.