Microsoft 98-381 Introduction to Programming Using Python 03 31Oct2024 - Practice Quiz

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Question 1 of 30

In a data analysis project, you are tasked with visualizing the relationship between two variables: the number of hours studied and the corresponding scores achieved by students in an exam. You decide to use Matplotlib to create a scatter plot to represent this data. After plotting the points, you want to enhance the visualization by adding a trend line that represents the linear relationship between the two variables. Which of the following methods would you use to achieve this?

Use `numpy.polyfit()` to calculate the best-fit line and then plot it using `matplotlib.pyplot.plot()`

Directly plot the points using `matplotlib.pyplot.scatter()` and add a line using `matplotlib.pyplot.axhline()`

Utilize `matplotlib.pyplot.bar()` to create a bar chart of the scores instead of a scatter plot

Apply `matplotlib.pyplot.fill_between()` to shade the area under the scatter plot

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