Data analysis in science

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What is an independent variable?

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An independent variable is the factor that is changed or controlled in a scientific experiment to test its effects on the dependent variable.

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What is a dependent variable?

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A dependent variable is the factor that is measured or observed in an experiment, which is affected by changes in the independent variable.

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What is a quantitative observation?

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A quantitative observation is a measurement that includes numbers and can be quantified, such as length, mass, or temperature.

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What is a qualitative observation?

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A qualitative observation describes characteristics or qualities that cannot be measured with numbers, such as color, texture, or smell.

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What is a hypothesis?

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A hypothesis is a testable prediction about the relationship between two or more variables.

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What is the purpose of a control group in an experiment?

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A control group is used as a standard for comparison in an experiment, helping to isolate the effects of the independent variable.

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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 graph?

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A graph is a visual representation of data that shows the relationship between different variables.

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What is the significance of a trend in data analysis?

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A trend indicates a general direction in which data points are moving over time, helping to identify patterns or changes.

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What is a scientific conclusion?

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A scientific conclusion is a summary of the results of an experiment, explaining whether the hypothesis was supported or not.