Lesson-Statistical Investigation

Learning Intention: Conduct your own statistical investigation using the class data.

Problem: Come up with an original question that compares your class with other Y10 boys in New Zealand (e.g. Is 10ATK taller than other Y10 Boys in New Zealand?)

Plan: How will you answer this question given appropriate data?

Data: From Google Spreadsheet or get your own from Census At School. You should sort this first and 'clean' the data. A stem and leaf diagram may be useful.

Analysis: 

✅ CL3 - Calculate the range, average (mean) and median time per week that the class spends travelling to school.  Graph using a dot plot. 

✅ CL4 - Calculate the range, mean, median, mode and complete a dot plot showing each data set.  

✅ CL5 -Calculate the range, mean, median, mode, lower quartile, upper quartile and interquartile range. Complete a box and whisker plot for each data set. 

Conclusion: 

Summary statistics "I notice that...."

Shape of the data: "I notice...."

Spread of the data (range, interquartile range): "I notice that...."

Middle 50% of the data: "I notice that...."

Links to more Statistical investigation tasks