Analyze Scatter Plot Trend

Abigail is studying the effect of sunlight on plant growth. Looking at the graph showing a line of best fit, what is the correlation shown?

• Length of life is constant

• Length of life increases as amount of sunlight increases

• Length of life increases as amount of sunlight decreases

• Length of life decreases as amount of sunlight increases

Benjamin is analyzing the relationship between the number of hours he studies and his test scores. Which of the following would be the most accurate equation for the scatter plot of his data?

• y = -2x - 7

• y = -x + 7

• y = 3x + 7

• y = 15x + 7

Michael is analyzing the relationship between the number of hours he studies and his test scores. Which equation written in slope-intercept form represents the trend line shown on the scatter plot below?

Elijah is analyzing the relationship between the number of hours students study and their test scores. In a scatter plot of his data, what do the points represent?

• Categories of data

• Individual data points

• The mean of the data

• The median of the data

Charlotte and Aria are analyzing the relationship between study hours and test scores. Which of the following is NOT a characteristic of a scatter plot they might use?

• It can show the strength of a relationship between variables

• It can show the direction of a relationship between variables

• It can show the frequency of data points

• It can show the spread of data points

Lily and Arjun are analyzing the relationship between two stocks they are interested in. What might a scatter plot reveal about these stocks?

• The average price of each stock

• The correlation between the stock prices

• The total market capitalization

• The dividend yield of each stock

The scatter plot shows the relationship between the number of chapters and the total number of pages for several books.  Use the trend line to predict how many chapters would be in a book with 140 pages. 

• 12 chapters

• 19 chapters

• 14 chapters

• 21 chapters

Choose the graph with a trend line that best fits the data.

• graph 1

• graph 2

• graph 3

• graph 4

Based on this scatter plot, a student with 6 absences should get approximately what score on the final exam? 

• ≅ 58

• ≅ 92

• ≅ 100

• ≅ 76

Level 1: Determine the type of correlation.

• Positive

• Negative

• No Correlation