Jake wanted to find out if people obeyed the 30 miles per hour (mph) speed restriction in his local town - AQA - A-Level Psychology - Question 2 - 2020 - Paper 1
Question 2
Jake wanted to find out if people obeyed the 30 miles per hour (mph) speed restriction in his local town. He recorded the driving speed of 200 cars on a Saturday aft... show full transcript
Worked Solution & Example Answer:Jake wanted to find out if people obeyed the 30 miles per hour (mph) speed restriction in his local town - AQA - A-Level Psychology - Question 2 - 2020 - Paper 1
Step 1
Measure of central tendency shown at data point A
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Answer
At data point A, the mode is the measure of central tendency, as this point represents the peak of the distribution curve where the highest frequency of driving speeds is observed.
Step 2
Measure of central tendency shown at data point B
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At data point B, the median is the appropriate measure of central tendency since this point is located close to the center of the distribution, indicating that half of the observations fall below this value.
Step 3
Measure of central tendency shown at data point C
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At data point C, the mean is the measure of central tendency, as this point represents an average speed considering all data points in the distribution.
Step 4
Interpret the data Jake gathered about driving speeds in his local town
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The data indicates that most drivers did not exceed the speed restriction of 30 mph in Jake's local town. This suggests a general compliance with the speed limit, which could also imply effective enforcement or awareness among drivers.
