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 Dataset?

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A dataset is a collection of related data that is usually presented in a table format, where each row represents a record and each column represents a variable.

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What is a Mean?

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The mean is the average of a set of numbers, calculated by adding all the numbers together and dividing by the count of numbers.

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What is a Median?

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The median is the middle value in a list of numbers sorted in ascending order. If there is an even number of values, the median is the average of the two middle numbers.

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What is a Mode?

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The mode is the number that appears most frequently in a dataset.

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What is a Bar Graph?

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A bar graph is a visual representation of data using bars of different heights or lengths to compare different categories.

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What is a Line Graph?

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A line graph is a type of chart that displays information as a series of data points called 'markers' connected by straight line segments.

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What is a Pie Chart?

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A pie chart is a circular statistical graphic divided into slices to illustrate numerical proportions.

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What is a Histogram?

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A histogram is a graphical representation of the distribution of numerical data, showing the number of data points that fall within specified ranges (bins).

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What is Data Collection?

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Data collection is the process of gathering information from various sources to analyze and draw conclusions.