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A hospital introduced a programme of handwashing in 2008 - Scottish Highers Human Biology - Question 20 - 2018
Question 20
A hospital introduced a programme of handwashing in 2008. The graph shows the impact of this on the number of cases of two infections. Which of the following statem... show full transcript
Worked Solution & Example Answer:A hospital introduced a programme of handwashing in 2008 - Scottish Highers Human Biology - Question 20 - 2018
Step 1
A The cases of both infections fell by 50% over the 5 year period.
Answer
To analyze this statement, we need to examine the data over the five-year period from 2008 to 2012 for both infections. By observing the trends in the graph, we can determine that while both infections show a decline, they do not necessarily drop by 50%. Therefore, this statement is not accurate.
Step 2
Step 3
C The highest number of cases of infection X was 0.62 per 100 patients while the highest number of cases of infection Y was 15 per 100 patients.
Answer
According to the graph, the highest number of cases of infection X indeed peaked at 0.62 per 100 patients, and infection Y reached a maximum of 15 per 100 patients. Thus, statement C is correct.
Step 4
D The lowest number of cases of infection X was 0.3 per 100 patients while the lowest number of cases of infection Y was 6 per 100 patients.
Answer
Upon reviewing the graph, it shows that the lowest number of cases for infection X was 0.3 per 100 patients, which matches statement D. However, the lowest number of cases for infection Y was 6 per 100 patients. Therefore, statement D is also correct.