Administration
Time: 20 minutes
Correct total: 12 marks (original printed 10 was a typographical error)
Student direction: complete all questions, show working where requested and attempt each question even when unsure.
Final mentor-approved diagnostic pre-assessment for the Year 8 Statistics teaching sequence, covering Chapter 8A–8E.
Evidence status: the diagnostic was administered and the original printing typo corrected. Student responses and whole-class/focus-student marks are held privately and are not available through this public portfolio.
The button above downloads a blank, corrected 12-mark PDF of the teacher-approved instrument. The original printed 10-mark footer was a typographical error; individual allocations always totalled 12. No student responses, names or marks are published here.
Original file: Year 8 Statistics Pre-Assessment – Final version.docx · mentor-approved version received 5 October 2026.
This assessment is diagnostic rather than graded. It is designed to identify prior knowledge before teaching and provide a baseline for planning, formative decision-making and later pre/post comparison.
Time: 20 minutes
Correct total: 12 marks (original printed 10 was a typographical error)
Student direction: complete all questions, show working where requested and attempt each question even when unsure.
Interpreting tables and data, frequency tables, range, mean, median and mode, followed by a non-marked student confidence check.
The table shows books read in one month: Mia 5, Noah 8, Ava 3 and Jack 6.
a. Who read the most books?
b. How many more books did Noah read than Ava?
Favourite sport survey: Basketball 8, Soccer 12, Tennis 4, Swimming 6.
a. Which sport was the most popular?
b. How many students participated altogether?
Data: 1, 2, 0, 1, 3, 2, 1, 0, 2, 1.
Students complete a frequency table for 0, 1, 2 and 3 pets.
Scores: 6, 10, 4, 8, 12.
Calculate the range and show working.
Goals scored in five games: 3, 5, 4, 6, 2.
Calculate the mean and show working.
Find the median of 9, 3, 7, 5, 11 and show working.
Find the mode of 4, 7, 5, 7, 3, 7, 4.
Students select: Very confident / Somewhat confident / Not yet confident.
They also identify one statistics topic they already feel confident with and one they need to learn more about.
After administration, question-level whole-class results and the same five focus students will be tracked. The evidence will be used to identify misconceptions, adjust the six-lesson sequence and later compare learning against a post-assessment.
Portfolio integrity: this page reproduces the content of the final mentor-approved instrument supplied for the placement. Student results are not yet claimed.