Lesson 12

Question

Scatterplot and data analysis unit test

Answer 1

1. What is a scatterplot and how is it used in data analysis?

2. Describe the relationship between two variables in a scatterplot.

3. How do you interpret the slope and intercept of a line of best fit on a scatterplot?

4. What is correlation and how is it calculated in data analysis?

5. Explain the difference between positive and negative correlation in a scatterplot.

6. How can outliers affect the interpretation of a scatterplot?

7. How can you determine the strength of a relationship between two variables in a scatterplot?

8. Describe the process of performing a regression analysis on a scatterplot.

9. What are some common mistakes to avoid when interpreting a scatterplot in data analysis?

10. How can you use a scatterplot to make predictions or draw conclusions about a dataset?