ETX1100/ETX5900 Business Statistics

Week 1: Business statistics foundations

What you will learn this week

Explain the role of statistics in evidence-based business decisions.
Classify categorical and numerical variables and cross-sectional and time-series data.
Distinguish populations, samples, parameters and statistics.
Recognise sampling bias and the value of representative random samples.
Use core Excel formulas and data-handling tools through integrated “Watch me, now you try” activities.
Calculate and interpret the mean, median and mode.

Class workbook

Download the Week 1 Excel workbook before class. Keep it open during the integrated seminar activities and save your own working copy.

Slides for the week

Upcoming assessments

Week 1: Quiz 1
Week 2: Quiz 2
Week 3: Quiz 3