Mathematics (Syllabus D) · May / June 2016 · Paper 21 · Question 10
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The question as text
100 electric light bulbs of Brand A were tested to find how long each bulb lasted. The results are summarised in the table below. Time (t hours) t G 50 50 1 t G 100 100 1 t G 150 150 1 t G 200 200 1 t G 250 250 1 t G 300 300 1 t G 350 Number of bulbs 2 2 10 40 30 14 2
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10(a)[1]
10(b)[2]
10(c)(i)[1]
10(c)(ii)[2]
10(d)[4]
10(e)[1]
10(f)[1]
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