A data analyst was asked to create a chart that shows the relationship between study hours and exam scores for each student using the data sets in the table below: Which of the following charts…

The correct answer is B. A scatter plot. A scatter plot is the correct chart type for visualizing the relationship (correlation) between two continuous numeric variables - in this case, study hours and exam scores. Each student becomes a single data point plotted at coordinates (study hours, exam score), and the…

Visualization

Question

A data analyst was asked to create a chart that shows the relationship between study hours and exam scores for each student using the data sets in the table below:

Which of the following charts would BEST represent the relationship between the variables?

Exhibit

Options

AA histogram
BA scatter plot
CA heat map
DA bar chart

How the community answered

(29 responses)

A
7% (2)
B
90% (26)
C
3% (1)

Explanation

A scatter plot is the correct chart type for visualizing the relationship (correlation) between two continuous numeric variables - in this case, study hours and exam scores. Each student becomes a single data point plotted at coordinates (study hours, exam score), and the resulting pattern reveals whether a positive, negative, or no correlation exists. A histogram (A) shows frequency distribution of a single variable. A heat map (C) is used for density or magnitude across a matrix. A bar chart (D) compares discrete categories, not continuous variable relationships.

Topics

#Data Visualization#Scatter Plots#Chart Selection#Variable Relationships

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