Scientific Data Handling & Statistics Worksheets | Master Standard Deviation Fits BTEC Unit 3

Designed to support students studying Pearson BTEC Level 3 Applied Science Unit 3, this resource provides comprehensive coverage of Section A: Planning and Section B: Data Handling for scientific investigations. This complete lesson package bridges the gap between vocational science and A-Level mathematical requirements, transitioning students from basic data classification to complex statistical analysis, including the manual calculation of Sample Standard Deviation and the mathematical identification of outliers.

Perfect for Year 13 students preparing for the Unit 3 external assessment, these worksheets emphasize precision, reliability, and scientific convention. Students will master the “Golden Rules” of tabulation, learn to interpret box and whisker plots, and apply the “Overlap Rule” to error bars to determine statistical significance in experimental results—all through forensic and biological science-based scenarios.

What is Included?

Data Classification Tasks: Interactive checklists for Discrete, Continuous, and Qualitative data types.

Scientific Tabulation Guide: “Spot the Error” tasks focused on BTEC-standard independent and dependent variable formatting.

Measures of Central Tendency: Practical exercises for Mean, Median, and Mode, including Estimated Mean for Grouped Data.

Dispersion & Outliers: Step-by-step guides for IQR and the 1.5 IQR mathematical rule for identifying anomalies.

Standard Deviation Deep-Dive: Comprehensive “Table Method” worksheets for manual calculation of Sample Standard Deviation.

Graphical Representation: Advanced tasks for plotting Box & Whisker diagrams and interpreting Error Bar significance.

Full Teacher Answer Key: Complete worked solutions for every mathematical task and scientific scenario.

Compatibility & Curriculum Links

Exam Board: Pearson Edexcel

Course: BTEC Level 3 National Extended Diploma in Applied Science

Unit Title: Unit 3: Science Investigation Skills (Learning Aim B)

Alternative Course: BTEC Level 3 Foundation Diploma in Forensic Investigation

Disclaimer: This is an independent resource and is not affiliated with or endorsed by Pearson.