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The table shows the marks obtained by 10 students in spelling tests in January and February - OCR - GCSE Maths - Question 4 - 2021 - Paper 1
Question 4
The table shows the marks obtained by 10 students in spelling tests in January and February. Mark in January 26 53 48 30 66 70 44 37 38 Mark in February 42 ... show full transcript
Worked Solution & Example Answer:The table shows the marks obtained by 10 students in spelling tests in January and February - OCR - GCSE Maths - Question 4 - 2021 - Paper 1
Step 1
Plot the marks for the remaining four students.
Answer
To plot the marks for the remaining four students, we first identify their corresponding marks in January and February from the table:
- Mark in January: 44, 37, 38 and their corresponding marks in February: 60, 48, 50.
We then plot the points (44, 60), (37, 48) and (38, 50) on the scatter diagram. Ensure these points are accurately represented for clarity.
Step 2
Describe the type of correlation shown in the completed scatter diagram.
Answer
The scatter diagram will likely show a positive correlation, indicating that as the marks in January increase, the marks in February also tend to increase. The points should appear to rise from the lower left to the upper right of the graph, suggesting a strong linear relationship between the two sets of marks.