Complete Figure 1c and analyse the temperature variations shown in Figures 1a, 1b and 1c - AQA - A-Level Geography - Question 1 - 2018 - Paper 2
Question 1
Complete Figure 1c and analyse the temperature variations shown in Figures 1a, 1b and 1c.
### Figure 1a shows the mean July temperatures at Faraday, a research stat... show full transcript
Worked Solution & Example Answer:Complete Figure 1c and analyse the temperature variations shown in Figures 1a, 1b and 1c - AQA - A-Level Geography - Question 1 - 2018 - Paper 2
Step 1
Upper-quartile (UQ) = n + 1 th position =
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Answer
The upper-quartile can be calculated using the formula: UQ=n+1 th position, where n is the number of observations. In this case, there are 11 observations:
UQ=11+1=12
We find the 3rd position in the ordered data, which corresponds to -4.7°C.
Step 2
Lower-quartile (LQ) = 3(n + 1) th position =
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Answer
The lower-quartile can be calculated with the formula: LQ=3(n+1) th position. Using n=11:
LQ=3(11+1)/4=10.4
This means the lower-quartile is the temperature value at the 3rd position.
The value at this position is -10.4°C.
Step 3
Inter-quartile Range (IQR)
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Answer
The Inter-quartile Range (IQR) can be found using the formula:
IQR=UQ−LQ
Substituting the values we have calculated:
IQR=−4.7−(−10.4)=5.7°C
Step 4
Analysis of temperature variations
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Answer
The temperatures in the Figures show considerable fluctuation.
From 1950 to 2016, the annual temperatures varied significantly, peaking in 1989 at 1.2°C and falling to -8.2°C in 2000.
The analysis of Figure 1c indicates:
The overall mean July temperature is around 12.2°C, with a moderate variation, which was only about 5.7°C.
There is a noticeable trend in the data, where temperature values have shown an increasing trend after 2000, with the two coldest temperatures occurring in 1976 and 1980.
Overall, the data indicates that there is a systematic variation in July temperatures, highlighting a broader climate trend.
