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Prospective study: The studies in which individuals are followed-up over the period of time. A general example of this type of investigation is where the samples of individuals are exposed and not exposed to the possible risk factor for a specific disease, are followed forward in time to determine what effects occur to them with respect to the illness under the investigation. At the end of the appropriate time period a comparison of the incidence of the disease between the exposed and non-exposed is made. A classic instance of such a study is that undertaken among the British doctors in the 1950s, to examine the relationship between smoking and death from the lung cancer. All the clinical trials are prospective.
The problematic and enigmatic theory of an inference introduced by the Fisher, which extracts a probability distribution for the parameter on the basis of the data without having f
Missing values : The observations missing from the set of data for some of the reason. In longitudinal studies, for instance, they might occur because subjects drop out of the stud
Matching is the method of making a study group and a comparison group comparable with respect to the extraneous factors. Generally used in the retrospective studies when selecting
A term which covers the large number of techniques for the analysis of the multivariate data which have in common the aim to assess whether or not the set of variables distinguish
what is the combine standard deviation height from the follwing
There is high level of fluctuation in a zigzag pattern in the time series for RESI1 which indicates that there is possibly negative autocorrelation present. Column C11 show
Data theory is anxious with how observations are transformed into data which can be analyzed. Data are thus viewed as the theory laden in the sense that the observations can be giv
The method of displaying the geographical variability of the disease on maps using different colors, shading, etc. The logic is not new, but the arrival of computers and computer g
Cartogram : It is the diagram in which descriptive statistical information is displayed on the geographical map by the means of shading, different symbols or in some other possibly
Ask quesoil company is considering whether or not to bid for an offshore drilling contract. If they bid, the value would be $600m with a 65% chance of gaining the contract. The com
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