Data Analysis 3.8A

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What is data analysis?

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Data analysis is the process of inspecting, cleaning, 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 does it mean to interpret data?

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Interpreting data means making sense of the data by analyzing it to find patterns, trends, or insights.

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What is a graph?

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A graph is a visual representation of data that helps to show relationships between different variables.

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What is a bar graph used for?

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A bar graph is used to compare different groups or categories of data.

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What is a line graph used for?

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A line graph is used to show trends over time by connecting data points with a line.

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What is the mean in data analysis?

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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 the median in data analysis?

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The median is the middle value in a list of numbers when they are arranged in order.

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What is the mode in data analysis?

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

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What is a survey?

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A survey is a method of collecting data by asking people questions to gather information about their opinions or behaviors.