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In 2012 there was an outbreak of whooping cough in the UK - Edexcel - GCSE Biology - Question 2 - 2015 - Paper 1
Question 2
In 2012 there was an outbreak of whooping cough in the UK. The graph shows the number of new cases of whooping cough in the UK from April to December 2012. number ... show full transcript
Worked Solution & Example Answer:In 2012 there was an outbreak of whooping cough in the UK - Edexcel - GCSE Biology - Question 2 - 2015 - Paper 1
Step 1
Describe the trend shown in the graph from April to December.
Answer
The graph indicates an increase in the number of new cases of whooping cough from April until reaching a peak in October, with a subsequent decrease in cases noticed in November and December. This suggests a seasonal trend of rising infections followed by a decline.
Step 2
Calculate the difference in the number of cases of whooping cough in September 2011 and September 2012.
Answer
In September 2012, there were 1320 new cases reported. In September 2011, there were 168 cases. Thus, the difference can be calculated as follows:
Therefore, the difference in the number of cases of whooping cough between September 2011 and September 2012 is 1152.