Year 8 CIE Statistics: Vocabulary & Terminology Quick Memorisation Guide | Year 8 CIE 统计：词汇术语速记指南

📚 Year 8 CIE Statistics: Vocabulary & Terminology Quick Memorisation Guide | Year 8 CIE 统计：词汇术语速记指南

Welcome to your Year 8 CIE Statistics Vocabulary Quick Memorisation Guide. Mastering the key terms and concepts in statistics is the first step towards understanding data, interpreting graphs, and solving problems with confidence. This guide presents each term with clear explanations in both English and Chinese, followed by memory aids and a handy reference table. Whether you are preparing for class tests or building a strong bilingual foundation, this resource will help you revise efficiently.

欢迎使用 Year 8 CIE 统计词汇速记指南。掌握核心统计术语和概念是理解数据、解读图表并自信解题的第一步。本指南以清晰的中英双语解释每个术语，并配有记忆技巧和便捷的参考表格。无论你是为班级考试做准备，还是在建立扎实的双语基础，这份资料都将帮助你高效复习。

1. Data and Types of Data | 数据与数据类型

Data is a collection of facts, numbers, or observations that you can analyse. In statistics, data can be grouped into several types depending on its nature and how it is collected.

数据是指可分析的一组事实、数字或观察结果。在统计中，数据可根据其性质和收集方式分为多种类型。

Qualitative data (also called categorical data) describes qualities or categories, such as someone’s favourite colour, type of pet, or true/false answers. It is non-numerical.

定性数据（也称分类数据）描述性质或类别，例如某人最喜欢的颜色、宠物种类或对/错答案，属于非数值型数据。

Quantitative data consists of numerical values that can be measured or counted, such as height, test scores, or the number of siblings.

定量数据由可测量或计数的数值组成，如身高、测试成绩或兄弟姐妹数量。

Quantitative data is further divided into discrete and continuous data. Discrete data can only take specific values, usually whole numbers. Example: the number of students in a class (you cannot have 20.5 students).

定量数据又分为离散数据和连续数据。离散数据只能取特定值，通常是整数。例如：班级里的学生人数（不可能有20.5个学生）。

Continuous data can take any value within a given range, including decimals. Examples: height (1.63 m), time taken (32.5 s), or weight (45.7 kg).

连续数据在给定范围内可取任意值，包括小数。例如：身高（1

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