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Unit I. Introduction to statistics and its applications, Unit II.…
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Unit III. Index numbers
They are a statistical tool used to compare and measure changes in a variable over time, between different geographic regions or between different data sets. Here are some of the most common index numbers:
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Simple index numbers
They are a way of measuring the relative change in a variable in relation to a base period or location. These indexes are calculated as the quotient between the value of the variable in the current period or place and the value of the variable in the base period or place, multiplied by 100.
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