Question14 In data visualization, (blank A) is useful for viewing the correlation between data points.What should you replace (blank A) to make the statement correct. Histogram Bar Chart Scatter Plot Line Graph ResetMaximum marks: 0.5 Flag question undefined单项选择题
A
Histogram
B
Bar Chart
C
Scatter Plot
D
Line Graph

Question

Question14 In data visualization, (blank A) is useful for viewing the correlation between data points.What should you replace (blank A) to make the statement correct. Histogram Bar Chart Scatter Plot Line Graph ResetMaximum marks: 0.5 Flag question undefined单项选择题

A

Histogram

B

Bar Chart

C

Scatter Plot

D

Line Graph

BlackTom AI · Accepted Answer

Scatter plots display the relationship between paired numerical variables, so they are the best choice for viewing correlation between data points.

Relevant knowledge points:
- A scatter plot graphs ordered pairs (x, y) for two quantitative variables; each point represents one observation.
- Correlation describes the strength and direction of a linear relationship (positive, negative, or none); Pearson’s r is a common measure.
- Other chart types serve different purposes: histograms show distribution of a single numerical variable, bar charts compare categories, and line graphs show trends (often over time).

Step-by-step reasoning:
1. Identify the goal: “viewing the correlation between data points” means investigating how one numeric variable changes as another changes (i.e., the relationship between two quantitative variables).
2. Evaluate each option:
   - Histogram: Plots frequency counts or density for intervals of a single variable. It does not show pairwise relationships, so it cannot reveal correlation between two variables.
   - Bar Chart: Compares values across discrete categories (categorical vs. numerical). It does not plot paired continuous data and thus does not show correlation between two continuous variables.
   - Scatter Plot: Plots each observation as a point with coordinates (x, y). The spatial pattern of points indicates direction (upward/downward), form (linear/nonlinear), and strength (tight/loose cluster). A regression line can be added to summarize correlation and compute Pearson’s r.
   - Line Graph: Connects successive data points, typically used for time series; while it can hint at relationships over time, it isn’t the standard tool for assessing correlation between two separate numeric variables.
3. Conclusion from evaluation: Only the scatter plot directly visualizes pairwise relationships and allows assessment of correlation.

Why the correct answer is correct:
- Scatter plots directly map two variables against each other so the pattern of points reveals correlation, enabling visual assessment of slope, clustering, and outliers.

Why the other options are incorrect:
- Histogram: single-variable distribution.
- Bar Chart: categorical comparisons, not pairwise continuous relationships.
- Line Graph: trend over an ordered domain (usually time), not the standard tool for assessing correlation between two variables.

Final confirmation: The correct replacement for (blank A) is Scatter Plot, matching the provided answer.

Question14 In data visualization, (blank A) is useful for viewing the correlation between data points.What should you replace (blank A) to make the statement correct. Histogram Bar Chart Scatter Plot Line Graph ResetMaximum marks: 0.5 Flag question undefined单项选择题

类似问题

What type of chart is commonly used to explore the relationship between two numeric columns?

The following scatterplot shows the relationship between the heights (m) and weights (kg) of a sample of seven people.What is the height when the weight equals 77 kg?

The following scatterplot shows the relationship between the heights (m) and weights (kg) of a sample of seven people.What is the weight when the height equals 1.86 m?

The following scatterplot shows the relationship between the heights (m) and weights (kg) of a sample of seven people.What is the height when the weight equals 77 kg?

Scatter plots are used when you have two numerical measures.

What type of chart is commonly used to explore the relationship between two numeric columns?

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