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(c) (i) 5, 6, 29 [2] (c) (i) 20, 27, 23, 5, 5 [2]
(ii) Frequency 20 × 10 + 27 × 25 + 23 × 40 + 5 ×
density 55 + 5 × 70
(ii) = 30.25
80 [4]
3.0
(d)
2.5 Frequency density

2.0 60
1.5 50
1.0 40

0.5 30
0 20
30 35 40 45 50 55 60
Time (t mins) 10
[2]
15 (a) (i) 26 – 28 [1] 0 10 20 30 40 50 60 70 80
(ii) 39 – 20 = 19 [2] m, marks
(iii) 23 [1] [4]
(iv) 5 [1]
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(b) 62
[1]

Answers 183

Answers.indd 183 15/03/2022 11:08 AM