Oxford AQA IGCSE · Mathematics (9260)

Interpretation: Practice Questions

5 multiple-choice questions marked as you go, and 5 written questions with worked solutions. All on Interpretation.

10 questions27 marksFree, no account

Question 1

1 mark

A researcher finds that as the number of hours spent studying increases, the test scores of students also tend to increase. Which of the following best describes this correlation?

Question 2

1 mark

Two classes, A and B, took the same math test. Class A had a mean score of \( 75 \) and a range of \( 10 \). Class B had a mean score of \( 75 \) and a range of \( 25 \). Which of the following statements is correct?

Question 3

1 mark

Two box plots are used to compare the marks of Group A and Group B in a test.
Group A: Median = 70, Interquartile Range (IQR) = 15
Group B: Median = 70, Interquartile Range (IQR) = 10
Which of the following statements correctly compares the distributions?<\/p>

Question 4

1 mark

A scatter graph shows the relationship between the age of a car and its value. The points on the graph generally follow a downward trend from left to right. Which term best describes this correlation?

Question 5

1 mark

A scatter graph shows the relationship between the age of a car, \( a \) years, and its value, \( v \) dollars. The line of best fit is given by the equation \( v = 25000 - 1800a \). What is the interpreted meaning of the value 25000 in this context?<\/p>

Question 6

2 marks

A scatter graph comparing the number of hours spent exercising to resting heart rate shows a strong negative correlation. If a person increases their exercise hours, what would typically happen to their resting heart rate?

Write your answer out first, then check it against the worked solution.

Question 7

3 marks

The box plots for the marks of two classes in a science test are compared. Class X has a median mark of \(55\) and an interquartile range of \(12\). Class Y has a median mark of \(55\) and an interquartile range of \(22\). Compare the distributions of the marks for the two classes.

Write your answer out first, then check it against the worked solution.

Question 8

5 marks

A histogram represents the heights of trees. The class \(2 < h \le 5\) has a frequency density of \(12\). If the total number of trees in the survey is \(200\), what percentage of the trees fall into this specific class?

Write your answer out first, then check it against the worked solution.

Question 9

5 marks

The table below shows the summary statistics for the scores of two groups of students in a science test.

Group A: Median = 45, Lower Quartile = 38, Upper Quartile = 48
Group B: Median = 42, Lower Quartile = 30, Upper Quartile = 48

(a) Calculate the Inter-Quartile Range (IQR) for both groups.
(b) Compare the performance and consistency of the two groups based on these statistics.

Write your answer out first, then check it against the worked solution.

Question 10

7 marks

The scores for two groups of students in a physics test are recorded below.
Group A: \( 2, 5, 8, 12, 13, 15, 15, 18, 20, 22 \)
Group B: \( 10, 11, 12, 12, 13, 14, 14, 15, 16, 18 \)
(a) Calculate the mean and range for Group A.
(b) Calculate the mean and range for Group B.
(c) Compare the performance and consistency of the two groups using your answers to parts (a) and (b).

Write your answer out first, then check it against the worked solution.

* The content provided by thinka is generated by AI and may not always be accurate or up-to-date. Please use it as a supplementary resource and verify with official materials.

You've seen the model answer. Now get yours marked.

This page can show you how a good answer looks. It cannot tell you what your answer was missing. thinka marks your written work against the real mark scheme in about 15 seconds.

Get My Answers Marked Back to the notes

Want more questions like these? Get a fresh set on this topic, marked as you go.