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n statistics, the standard deviation is a measure that is used to quantify the amount of variation or dispersion of a set of data values. A low standard deviation indicates that the data points tend to be close to the mean also called the expected value of the set, while a high standard deviation

Marketing is to create awareness, improve brand awareness, etc. When you do your marketing on online using digital devices like computers,tablets and mobile phones it is known as digital marketing. It is finding your right target market on internet we can reach them by generating business on internet.