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On which plot the Best fit-line is represented?

(a) Histogram plot

(b) Scatter plot

(c) Probability plot

(d) Dot plot

This question was posed to me during an interview.

The origin of the question is Graph Paper with Logarithmic Coordinates in section Presentation and Analysis of Data of Bioprocess Engineering

1 Answer

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Correct option is (b) Scatter plot

For explanation I would say: A line of best fit (or “trend” line) is a straight line that best represents the data on a scatter plot. This line may pass through some of the points, none of the points, or all of the points.

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