Probability and Statistics

Sampling and Estimation: Central limit theorem and its application and concept of point and interval estimation and confidence interval for population mean and proportion

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sampling and estimation

Population (Universe) Population means aggregate of all possible units under investigation. It need not be human population. It may be population of plants, population of insects, population of fruits, etc. Finite population When the number of observation can be counted and is definite, it is known as finite population. • No. of plants in a … Read more

Simple Linear Regression and Correlation: Concept of simple regression analysis, estimation of regression coefficient by using square estimation method and Standard error, coefficient of determination

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CORRELATION In many natural systems, changes in one attribute are accompanied by changes in another attribute and that a definite relation exists between the two. In other words, there is a correlation between the two variables. For instance, several soil properties like nitrogen content, organic carbon content or pH are correlated and exhibit simultaneous variation. … Read more

Theory of Probability

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Probability: The probability theory provides a means of getting an idea of the likelihood of occurrence of different events resulting from a random experiment in terms of quantitative measures ranging between zero and one. The probability is zero for an impossible event and one for an event which is certain to occur. Some terminologies: Random … Read more