ExpertMedium2 marksStructured
AQA GCSE · Question 17.10 · Interpreting Results and Evaluating Findings
Li Na says that the journey time between London and Manchester Piccadilly will be reduced by about an hour. Is Li Na correct? Show working to justify your answer.
Li Na says that the journey time between London and Manchester Piccadilly will be reduced by about an hour. Is Li Na correct? Show working to justify your answer.
How to approach this question
1. Find "Manchester Piccadilly" on the vertical axis of the comparative bar chart.
2. Read the value for the "Current journey time" (darker bar) from the horizontal axis.
3. Read the value for the "Journey time when HS2 complete" (lighter bar).
4. Calculate the difference between these two times.
5. Compare the difference to "about an hour" (60 minutes) and state whether Li Na is correct.
Full Answer
Yes, she is correct.
Current time ≈ 128 minutes.
HS2 time ≈ 68 minutes.
Reduction = 128 - 68 = 60 minutes, which is exactly one hour.
First, we need to read the journey times for Manchester Piccadilly from the bar chart.
- The current journey time (darker bar) is approximately 128 minutes.
- The journey time with HS2 (lighter bar) is approximately 68 minutes.
Next, we calculate the reduction in time:
Time reduction = Current time - HS2 time
Time reduction = 128 - 68 = 60 minutes.
An hour is equal to 60 minutes. Since the reduction is exactly 60 minutes, Li Na's statement that the time will be reduced by "about an hour" is correct.
Common mistakes
✗ Misreading the values from the chart.\n✗ Making a subtraction error.\n✗ Forgetting to make a final conclusion (Yes/No).
Practice the full AQA GCSE Statistics Foundation Tier Paper 2
45 questions · hints · full answers · grading
More questions from this exam
Q01A set of data is ordered from smallest to largest. What is the name given to the measure that is ...EasyQ02Look at these sets of data. Which data set has a different range to the others?
A: 2, 4, 5, 5, 7,...EasyQ03The probability that a biased coin lands on heads is 2/5. What is the probability that this coin ...EasyQ04Which of these diagrams could be suitable for displaying raw discrete data?EasyQ05.1The table shows the annual sales value (£ million) in the UK of different ways to buy music. Writ...Easy