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S1 - edexcel

When we are writing the answers to questions what is the appropriate number of sfs?

i was wondering because I was looking at the examiners report for January and in some of the questions they wrote some students could not write ....to the required accuracy??
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Avatar for Chris87
Chris87
1
I think in general in any statistics paper (for Edexcel at least) you're meant to write your answer to 3 significant figures unless otherwise stated.
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Avatar for hajira
hajira
i think the rule of thumb for probabilities is 4s.f., but i guess would vary with question..
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Gauss
11
onlylittleme
When we are writing the answers to questions what is the appropriate number of sfs?

i was wondering because I was looking at the examiners report for January and in some of the questions they wrote some students could not write ....to the required accuracy??


It really does depend on the type of question.

If in the question, say, an answer is given as XX.X, and they ask you to find another answer, then it would be reasonable to guess that they want you to find the answer to same level of signficance.

Usually its 3, but could vary.

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