Data Analysis

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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 dot plot?

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A dot plot is a simple way to display data using dots to represent the frequency of values.

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What is a pictograph?

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A pictograph is a graph that uses pictures or symbols to represent data.

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What is a bar graph?

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A bar graph is a chart that presents categorical data with rectangular bars, where the length of each bar is proportional to the value it represents.

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How do you find the total number of items in a dot plot?

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Count the number of dots for each category and add them together.

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What does it mean if a bar is taller than others in a bar graph?

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It means that category has a higher frequency or value compared to the others.

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What is the mode in a set of data?

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

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How can you determine your favorite snack from a dot plot?

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Look for the category with the most dots, as it represents the most popular choice.

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What is a survey in data analysis?

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A survey is a method of collecting data by asking people questions to gather information.

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What is the purpose of collecting data?

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The purpose is to gain insights, make decisions, and understand trends.