PRACTICE PAPER FOR 2026 SUMMER EXAMS
Mark Scheme (Results)
2025 PREDICTED PAPER
Pearson Edexcel GCE
Mathematics STATS Paper
8MA0/21
, PRACTICE PAPER FOR 2026 SUMMER EXAMS
Part Answer Marks Notes
Award 1 mark for each of the following:
• Whiskers correctly drawn from 1.2 to 8.5
hours
(a) Correct box plot B1 × 3 • Box from 2.5 to 5.2 with a clear median at
3.4
• Scale correctly used (1 cm = 1 hour,
approx positions allowed)
(b) IQR = 5.2 – 2.5 = 2.7 hours B1 Must be correctly subtracted
No, because 0.5 is not less Accept alternative reasoning: Q1 – 1.5 ×
(c) than Q1 – 1.5 × IQR → 0.5 is not B1 IQR = 2.5 – 4.05 = –1.55, and since 0.5 > –
less than –1.55 1.55, it is not an outlier
Mark Scheme (Results)
2025 PREDICTED PAPER
Pearson Edexcel GCE
Mathematics STATS Paper
8MA0/21
, PRACTICE PAPER FOR 2026 SUMMER EXAMS
Part Answer Marks Notes
Award 1 mark for each of the following:
• Whiskers correctly drawn from 1.2 to 8.5
hours
(a) Correct box plot B1 × 3 • Box from 2.5 to 5.2 with a clear median at
3.4
• Scale correctly used (1 cm = 1 hour,
approx positions allowed)
(b) IQR = 5.2 – 2.5 = 2.7 hours B1 Must be correctly subtracted
No, because 0.5 is not less Accept alternative reasoning: Q1 – 1.5 ×
(c) than Q1 – 1.5 × IQR → 0.5 is not B1 IQR = 2.5 – 4.05 = –1.55, and since 0.5 > –
less than –1.55 1.55, it is not an outlier
