Negative: Fluency & Practice
Mathematics
Grade 8
11 questions
~22 mins
1 views0 downloads
About This Worksheet
A worksheet focusing on understanding and interpreting negative correlation in scatter graphs, designed for Grade 8 students to develop procedural mastery and problem-solving skills.
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Negative: Fluency & Practice
Subject: MathematicsGrade: Grade 8
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Untitled Worksheet
Grade Grade 8
A
Practice Questions
Answer all questions. Show your working in the grid spaces provided.
1.
Plot the points (2, 8), (4, 6), (6, 4), and (8, 2) on the scatter graph. Describe the correlation.
[2 marks]2.
Calculate the linear trend if the points (1, 9), (3, 6), (5, 3), and (7, 0) are plotted. What is the slope?
[3 marks]3.
On a scatter graph, a negative correlation is observed. What does this tell you about the relationship between the two variables?
[2 marks]4.
Construct a scatter plot with the following points: (1, 10), (2, 8), (3, 6), (4, 4). What type of correlation does this suggest?
[2 marks]5.
A student draws a scatter graph showing points that trend downward from left to right. Explain what negative correlation indicates about the data.
[3 marks]6.
Identify the mistake: A graph shows a downward trend, but the student claims it has positive correlation. What is wrong?
[3 marks]7.
Given the points (-2, 10), (0, 8), (2, 6), and (4, 4), find the equation of the line of best fit.
[4 marks]8.
A graph shows a clear negative trend. What does this imply about future predictions if the current trend continues?
[2 marks]9.
Plot the points (-3, 15), (-1, 12), (1, 9), and (3, 6). What is the correlation and what does it indicate?
[2 marks]10.
In a real-world scenario, a negative correlation between hours spent watching TV and exam scores is observed. What might this imply?
[3 marks]11.
Challenge: The points (1, 7), (2, 4), (3, 1), and (4, -2) are plotted. Find the correlation coefficient and interpret its meaning.
[4 marks]Quick Actions
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Details
- Created
- 1/1/2026
- Updated
- 1/1/2026
- Type
- worksheet