Y9 Booklet 05 - Statistics (S1) | Original 30-page PDF

Download Dr Taylan Çeltik’s original 30-page Y9 Booklet 05 - Statistics (S1), covering data types, two-way tables, scatter diagrams and correlation, summary statistics, frequency diagrams, combined means and stem-and-leaf plots.

This is the original teaching booklet, retaining its historical question numbers, diagrams, equations and included selected worked examples. It is not a newly authored complete solutions pack. Digital PDF download only.

A separate clarification PDF is included. Page 12, Q5-3(a): mean = 16/9 = 1.777… ≈ 1.78 to two decimal places, rather than the printed 1.77. Pages 13–14, median position: for odd n, take ordered position (n + 1)/2; for even n, average positions n/2 and n/2 + 1. The displayed (n + 1)/2 position rule belongs to odd n, although it follows the even-data paragraph in the original. The rule does not change at 100 values, and the large-frequency shortcut is not a general replacement. Page 18, Q5-12(b): the range is 92 − 74 = 18, rather than the printed 15. Page 19, Q5-12(d): both 193 cm and 198 cm occur twice. The data are bimodal; the printed N/A is incorrect. Recording compatibility: the matching Part 1 and Part 2 recordings use this original’s Q5-series labels. A recording with different question numbers may use another edition; consult its explicit edition guidance before choosing a booklet.

Historical scanned worked examples are softer than the typed text. All page content remains in its original positions. A right graph edge in a scanned example is tightly cropped in the original.

Use the exact question/page references in each matching video description. The booklet includes further practice beyond each selected recording. Spiral learning connects these skills with earlier number, algebra, graph and geometry ideas.