Easy1 markShort Answer
Homeostasis and ResponseData analysisAnomalous resultsReaction time

AQA GCSE · Question 02.5 · Homeostasis and Response

Table 1: Reaction time in millisecondsTestStudent PStudent QStudent RStudent S13173103673202309293352304329031235031543333073593085328312635313Mean315307357X

There is an anomalous result for student R. Identify the anomalous result in Table 1.

How to approach this question

An anomalous result is one that does not fit the pattern of the other results. Look at the five results for Student R: 367, 352, 350, 359, 635. Identify the value that is very different from the others.

Full Answer

635
The results for Student R are 367, 352, 350, 359, and 635. The first four results are all clustered between 350 and 367. The fifth result, 635, is significantly higher than the others and does not follow the pattern. Therefore, 635 is the anomalous result. This could have been caused by a lapse in concentration or a distraction.

Common mistakes

✗ Identifying a result from the wrong student's data. ✗ Choosing a value that is within the normal range for that student.

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