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 The teacher tries to help the average and below average students to score more grades in future. In a factory, the mean of the wages helps the authorities to know if the workers' welfare is maintained. It also helps to compare the salaries of the employees of the different companies. In sales, the average sales in the district helps the sales manager to plan for increasing the sales in the future. The governemnt takes the average income and expense of the citizens to know whether the citizens rights are maintained. The family finds the average of their expenses to balance their finance.
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I.Weather forecasts
ii.Predicting disease
iv.Consumer goods
v.Medical studies.
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