Lesson ProgressPhase 5 of 6
Phase 5Assessment
Assessment: Descriptive Statistics: What Does Normal Look Like?
MCQ exit ticket on definitions, interpretation, and misconceptions
đź“ť Exit Ticket: Descriptive Statistics
Demonstrate your understanding of descriptive statistics—mean, median, and range—and when to use each measure in real business situations.
Assessment Focus:
Definitions
- • What is mean? What is median?
- • How is range calculated?
Application
- • When to use mean vs. median
- • What outliers do to statistics
Descriptive Statistics Assessment
Answer each question based on what you've learned about finding 'typical' values in business data.
1. What is the definition of the mean in statistics?
2. Why might the median be preferred over the mean when analyzing data with outliers?
3. What does the range of a dataset tell you?
4. You have this data: 45, 52, 48, 51, 49, 55, 53. What is the median?
5. A café owner looks at 10 weekends of sales and sees: $500, $510, $495, $520, $505, $500, $515, $505, $490, $5,200. Which measure better represents 'typical' weekend sales?
6. What signal tells you to use the median instead of the mean?
7. In the café data from this lesson, we calculated that the mean and median were both around $495 for many weeks. What did this tell us about the data?
8. If Sarah wants to order inventory for a 'typical' weekend, which question should she ask?
0 of 8 questions answered
How Did You Do?
8/8
Expert
Ready to learn about outliers
6-7/8
Proficient
Strong foundation, review explanations
Below 6
Developing
Review phases 2-3 before moving on