Scientific sampling is the process of examining a small section or sample of a larger group. An example would be to examine one grain of rice out of a bag or pot to determine whether or not the rice as a whole is still usable.
Know MoreSimple random sampling is a term used to describe the method of selecting the sample to be examined. The sample has the same probability as the rest of the data to be selected.
Scientific sampling is not a reliable source when a high level of accuracy is desired. An advantage of scientific sampling is that it is cost effective to gain an overall perspective of a large group of data.
Learn more about StatisticsIn chemistry, absorption refers to the process through which one substance permeates another. An example of this is a liquid permeating a solid. Absorption can be physical or chemical, depending on whether it is non-reactive or reactive, respectively.
Full Answer >In mathematics, the average often refers to the mean. There are three types of central tendencies or averages in mathematics, and these are used extensively in statistics. These are the mean, mode and median.
Full Answer >Population density tells you how crowded a certain area is, on average. To calculate, you need measurements of area, the population count and a calculator.
Full Answer >The three main types of correlation are positive, negative and no correlation. A positive correlation means that both variables increase together. A negative correlation means that as one variable increases, the other decreases. No correlation means that the variables do not change with each other.
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