Unit three lesson 12 unit plots and data analysis, scatterplots and data analysis unit test
1. What is a scatterplot?
A. A type of line graph
B. A graphical display of data points in two dimensions
C. A bar graph
D. A pie chart
2. What type of relationship is shown in a scatterplot where the points seem to form a straight line?
A. Positive correlation
B. Negative correlation
C. No correlation
D. Nonlinear correlation
3. How can outliers affect the interpretation of a scatterplot?
A. They have no effect on the interpretation
B. They can skew the trend or pattern seen in the data
C. They make the data more accurate
D. They improve the overall appearance of the scatterplot
4. What is the purpose of data analysis in a scatterplot?
A. To identify patterns and relationships in the data
B. To make the scatterplot look aesthetically pleasing
C. To label each data point with a different color
D. To add unnecessary elements to the graph
5. Which of the following statements is true regarding the trend of data points in a scatterplot?
A. All data points will always fall exactly on the trend line
B. The trend line will connect all the data points in a scatterplot
C. The trend line represents the general direction of the data points
D. The trend line is not necessary in a scatterplot
6. What is the purpose of conducting a unit test on scatterplots and data analysis?
A. To practice applying the concepts learned in the unit
B. To create more scatterplots
C. To calculate the correlation coefficient
D. To add more data points to the scatterplot
7. Give an example of a scenario where a scatterplot may be used for data analysis.
8. Explain how outliers can impact the interpretation of a scatterplot.
9. Describe the process of conducting data analysis on a scatterplot.
10. What are some key factors to consider when interpreting the trend of data points in a scatterplot?