ExpertEasy1 markMultiple Choice
AQA GCSE · Question 04 · Interpreting Results and Evaluating Findings
This graph was seen on the BBC News App. Circle the letter of the statement for the graph which is definitely true.
This graph was seen on the BBC News App. Circle the letter of the statement for the graph which is definitely true.
Answer options:
A.
2005 had the highest % of 16 to 24-year-olds drinking since 2000.
B.
The % of 16 to 24-year-olds drinking has fallen every year from 2005.
C.
Most 16 to 24-year-olds in 2017 did not drink alcohol in the last week.
D.
Most 16 to 24-year-olds in 2017 do not drink alcohol at all.
How to approach this question
1. Read the question carefully, noting the phrase "definitely true". This means the conclusion must be drawn solely from the information presented in the graph.
2. Analyze statement A: The graph starts at 2005. Any claim about years before 2005 cannot be verified.
3. Analyze statement B: Look at the trend of the line from 2005. It goes up from 2011 to 2014. Therefore, it has not fallen "every year".
4. Analyze statement C: Find the value for 2017 on the graph. It is just below 50% (approx. 48%). "Most" means more than 50%. If 48% did drink, then 100% - 48% = 52% did not drink. Since 52% > 50%, this statement is true.
5. Analyze statement D: The graph specifies "in the last week". This is a time-limited survey. It provides no information about overall drinking habits.
6. Select the only statement that is demonstrably true from the graph.
Full Answer
C.Most 16 to 24-year-olds in 2017 did not drink alcohol in the last week.✓ Correct
Let's evaluate each statement based **only** on the information in the graph:
**A: 2005 had the highest % of 16 to 24-year-olds drinking since 2000.**
The graph only shows data from 2005 onwards. We have no information about the year 2000. So, this statement is not definitely true.
**B: The % of 16 to 24-year-olds drinking has fallen every year from 2005.**
The graph shows the percentage increased between 2011 and 2014. So, this statement is false.
**C: Most 16 to 24-year-olds in 2017 did not drink alcohol in the last week.**
In 2017, the percentage who drank alcohol was approximately 48%. This is less than 50%. Therefore, the percentage who did **not** drink alcohol was 100% - 48% = 52%. Since 52% is more than 50%, "most" did not drink alcohol in the last week. This statement is definitely true based on the graph.
**D: Most 16 to 24-year-olds in 2017 do not drink alcohol at all.**
The graph is about drinking "in the last week". It gives no information about their drinking habits at other times. We cannot conclude they don't drink at all. So, this statement is not definitely true.
The question asks to identify a statement that is **definitely true** based on the provided line graph.
- **Statement A** is not definitely true because the graph's data begins in 2005; there is no information about 2000.
- **Statement B** is false. While the overall trend might be downwards, the graph clearly shows an increase in the percentage between 2011 and 2014.
- **Statement C** is true. In 2017, the percentage of 16 to 24-year-olds who drank alcohol in the last week is shown to be below 50% (approximately 48%). This means that the percentage who did *not* drink in the last week is greater than 50% (approximately 52%). Therefore, it is true that "most" (a majority) did not drink alcohol in the last week.
- **Statement D** is not definitely true. The survey only covers "the last week". It is an example of extrapolation to assume this applies to their entire lives ("at all"). A person could drink alcohol but just not have done so in the specific week of the survey.
Common mistakes
✗ Making assumptions beyond the data provided (e.g., assuming the trend before 2005 or what "in the last week" implies about all time).
✗ Misinterpreting "most" as needing a very large majority, when it simply means > 50%.
✗ Not carefully checking the trend of the line for statement B.
Practice the full AQA GCSE Statistics Higher Tier Paper 1
42 questions · hints · full answers · grading
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