1. Statistical methods are used for efficient planning of experiments and for interpreting experimental data.
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2. In agricultural research, efforts are made to know the hidden regularities of the some aspects of soil, crops and other related biological phenomena. It may be yield potentials of crop, effects of pest incidence on crop yields, effect of changes in climate on crops and pests, effect of fertilizer application on crop yields, effect of cross fertilization of different crop varieties etc.
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3. Modern statistical methods and statistical data are being found increasingly useful is research in different field experiences about crop yields with different types of fertilizers and different types of soils are very often designed and analyzed according to statistical methods.
4. Statistical methods are used for testing efficiency of chemicals and methods of treatment.
5. Agricultural economists use forecasting procedures in order to determine the future demand and supply of food. They are regression analysis in empirical estimation functional relationships between quantitative variable.
Aims of Statistics:
There are three aims of statistics
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1. To study the population.
2. To study the variation and its causes.
3. To study the methods of reduction of data.
Definition of Statistics:
“Statistics are the numerical statements of facts capable of being analyzed and interpreted and the science of statistics is the study of principles and methods used in the collection analysis and interpretation of numerical data in any sphere of enquiry”.
Limitations of Statistics:
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The important limitations of statistics are as given below:
1. It does not study qualitative phenomena.
2. Statistical studies are true only on an average.
3. It does not study individuals.
4. It does not reveal the entire story.
5. It is liable to be misused.