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How does the lack of a normal distribution influence the analytical options available to a researcher?
Most parametric and many non-parametric tests for testing the significance of hypotheses are based on the assumption of normality - or approximate normality.
Define skewness and kurtosis?
Skewness is a measure of symmetry, or more precisely, the lack of symmetry. A distribution, or data set, is symmetric if it looks the same to the left and right of the center point. Kurtosis is a measure of whether the data are peaked or flat relative to a normal distribution. See related link. By doing a search on the internet, you can find more examples.
Who discovered geometry and used geometry?
The branch of mathematics we know as geometry was not "discovered" by any one person. Rather, it was developed by different philosophers and mathematicians across many hundreds of years or even thousands of years. We know geometry was studied by the ancient Greeks, and there is evidence that other ancient cultures had investigators who worked with geometric ideas. It is not difficult to look around in the world and see geometric ideas. They can be found in natural things, like the shapes and arrangements of flower petals, to cite one example. The builders of many structures in the ancient world obviously mastered geometry and the physics (mechanical engineering) of structures. Today we can find no architects that lack an appreciation of geometric ideas; there is a geometry apparent in things we build, both large and small. And the ideas of geometry are an essential part of study for matriculating teenagers because of the wide applications in which geometry plays a part.
What is a large event called?
Actually there are four names: Graduation, wedding, pregnancy, divorce. Death used to be one, but then it became inconsequential due to the lack of interest by the participant.
What is skewnes?
Skewness is a measure of symmetry, or more precisely, the lack of symmetry. A distribution, or data set, is symmetric if it looks the same to the left and right of the center point.The Shape of a HistogramA histogram is unimodal if there is one hump, bimodal if there are two humps and multimodal if there are many humps. A nonsymmetric histogram is called skewed if it is not symmetric. If the upper tail is longer than the lower tail then it is positively skewed. If the upper tail is shorter than it is negatively skewed.Unimodal, Symmetric, NonskewedNonsymmetric, Skewed RightBimodal
