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What are observations and measurements called?

Usually, when observations and measurements are aggregated, these are called DATA.


Why the minimum and maximum values for the grouped data are different from the minimum and maximum values for the raw data?

The minimum and maximum values for grouped data can differ from those of raw data because grouped data summarizes ranges of values rather than individual observations. In grouping, the actual minimum and maximum values may fall within a range, leading to a representation that does not capture the true extremes of the raw data. Additionally, if the grouping intervals are not small enough, they may miss outliers or extreme values that exist in the raw dataset. Thus, the aggregated nature of grouped data can obscure the precise minimum and maximum values present in the raw data.


When is a dot plot best applied?

A dot plot is best applied when you want to display small to moderate-sized datasets, particularly for categorical or discrete numerical data. It effectively shows the distribution, frequency, and potential outliers within the data, allowing for easy comparison across categories. Dot plots are especially useful when the data points are limited and when the emphasis is on individual data values rather than aggregated statistics.


What is the definition for 'aggregated'?

The most common meaning of the word "aggragated" is the amount which something constitutes of a larger unity. A less common meaning (taken from biology) is something that clusters together in a larger unity.


What is a mapping or pairing of input values with output values?

A relation is a mapping or pairing of input values with output values.

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