Data Analysis

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What is data analysis?

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Data analysis is the process of inspecting, cleaning, transforming, and modeling data to discover useful information, inform conclusions, and support decision-making.

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What is a quartile in data analysis?

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A quartile is a type of quantile that divides a data set into four equal parts, each containing a quarter of the data.

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What does the third quartile (UQ) represent?

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The third quartile (UQ) represents the value below which 75% of the data falls.

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How do you calculate the percentage of a part compared to a whole?

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To calculate the percentage, divide the part by the whole and multiply by 100.

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What is a circle graph (pie chart)?

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A circle graph, or pie chart, is a circular statistical graphic that is divided into slices to illustrate numerical proportions.

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What is the median in a data set?

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The median is the middle value when the data set is ordered from least to greatest.

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What is the mode in a data set?

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The mode is the value that appears most frequently in a data set.

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What is a survey in data analysis?

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A survey is a method of gathering information from individuals, often used to collect data on opinions, behaviors, or characteristics.

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What does it mean to round a number?

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Rounding a number means adjusting it to a nearby specified value, often to make it simpler or easier to work with.

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What is a data set?

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A data set is a collection of related data points or values, often organized in a table or list.