I am trying 2014-15 past paper and have the following question on B4(e): I would like to know what is expected for "justify and explain" after calculating the required values.
A:
“justify and explain” means you need to justify the bases for
your making the conclusion--which should be based on deduction and elimination.
Also you need to explain how the conclusion was derived. In this case, you calculate and get some numbers. You need to explain how you use the numbers to come to the conclusion.
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