NSSCO Biology 6116 Practice Questions - Namibia Senior Secondary Certificate Ordinary - Biology (Syllabus Code 6116) Exam

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Three repeats of a starch test give times of 42 s, 44 s and 120 s. What is the best first action before calculating a mean?

Ignore all results and invent a new value Identify 120 s as anomalous and investigate or exclude it with justification Always average every reading including clear outliers without comment Convert seconds to millilitres

Correct Answer:

Identify 120 s as anomalous and investigate or exclude it with justification

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