You are a professor teaching Data Science, and you want to visually assess if the students' scores on Quiz 1 follow a particular distribution. Which plot would be the best choice for your purpose?

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BlackTom AI · Accepted Answer

Understanding what the instructor wants to assess is key here. The goal is to visually inspect the distribution shape of the quiz scores, such as symmetry, skewness, modality, and spread.
Option 1: Bar Chart. A bar chart is great for comparing discrete categories, not for revealing the distribution of a continuous variable like test scores across a range. It won’t show the density or frequency patterns across score values effectively.
Option 2: Scatter plot. A scatter plot displays relationships between two variables, typically with one variable on each axis. Since we are examining the distribution of a single variable (quiz scores) rather than the relationship between two variables, a scatter plot doesn’t provide a direct view of the distribution shape.
Option 3: Histogram. A histogram bins continuous data (like scores) into intervals and shows the frequency (or density) in each bin. This directly reveals distributional characteristics such as normality, skew, gaps, and multi-modality, making it the best choice for assessing distribution visually.
Option 4: Line plot. A line plot emphasizes trends over an ordered dimension (often time) or a continuous sequence. While it can display a distribution over an index, it does not naturally convey how the data are distributed across score values, and it can be misleading for distribution purposes.
In summary, when the objective is to visualize how quiz scores are distributed across possible values, the histogram is the most appropriate tool because it highlights frequency across score ranges and the overall shape of the distribution.

BU.330.780.T2.SP25 Quiz 1- Requires Respondus LockDown Browser

You are a professor teaching Data Science, and you want to visually assess if the students' scores on Quiz 1 follow a particular distribution. Which plot would be the best choice for your purpose?

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