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The study of climate, scientifically defined as weather conditions averaged over a long period of time. However, when we say we expect climatology in terms of forecasts, these are not simply average conditions, but include the range of variability in rainfall quantity, spatial distribution, and temporal distribution that are historically possible for a region.

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Coefficient of variation (CV)

The standard deviation divided by the mean. This measure puts the variability in a context of the average rainfall. Areas with large variability relative to the mean represent locations especially vulnerable to seasonal variation. Coefficient of variation is a useful statistic for comparing the degree of variation from one data series, or one location, to another, even if the means differ.

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Corn

Also, Maize

Maize is the plant and corn is the kernel or grain, but corn can refer to kernels of different plants, not just maize. In some countries, including North America, maize and corn are used interchangeably, but this is not the case in most parts of the world. In general, we use maize when referring to the crop.

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