Year 10 Edexcel Statistics: Case Study Practice | Year 10 Edexcel 统计：案例分析实战演练

📚 Year 10 Edexcel Statistics: Case Study Practice | Year 10 Edexcel 统计：案例分析实战演练

In this case study, we will work through a complete statistical investigation from data collection to drawing conclusions. This hands-on approach will strengthen your understanding of key GCSE Statistics topics.

在这个案例研究中，我们将从头到尾完成一项完整的统计调查，从数据收集到得出结论。这种实战演练将加深你对GCSE统计学关键主题的理解。

1. The Case Study Scenario | 案例背景

A mathematics teacher at a secondary school wanted to explore whether there is a relationship between the amount of time Year 10 students spend on their mobile phones each day and their performance in a recent maths test.

一所中学的数学老师想探究Year 10学生每天使用手机的时长与他们最近一次数学测验成绩之间是否存在关系。

She decided to carry out a small-scale investigation. Twenty students were randomly selected, and data on their daily phone usage (in minutes) and test scores (as percentages) were collected.

她决定开展一项小规模的调查。随机选取了20名学生，收集了他们每天手机使用时间（以分钟计）和测验成绩（百分比）的数据。

2. Data Collection Methods | 数据收集方法

Phone usage data was gathered through a short self-report questionnaire, where students estimated their average daily screen time over the past week.

手机使用数据通过一份简短的自我报告问卷收集，学生需要估计过去一周内自己平均每天的屏幕使用时间。

Maths test scores were obtained directly from the school’s assessment records, ensuring accuracy and avoiding recall bias.

数学测验成绩直接从学校的评估记录中获取

Published by TutorHao | Year 10 统计 Revision Series | aleveler.com

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