Yukon College course MATH 105 (Intro Statistics) blackboards

1. Chebyshev’s theorem: At least 1-1/k2 of the data is within k standard deviations, no matter how crazy the distribution

2. Using Chebyshev’s theorem

3. Solving for k (we got k=2)

4. Calculating z-scores

5. Finding what percentile 86 is at

6. In the same data set, what value is at the 75th percentile?

7. Finding min, max, and median -- and getting ready to find Q1 and Q3

8. Q1 and Q3 from the data on the last slide

9. Boxplot of the 5-number summary we just found

10. More practice calculating standard deviation with a table

11. Finishing the calculation using the table on the last slide

12. Another table calculation for standard deviation with new data

13. Completing that calculation

14. So, we found that the tallest buildings in New York are more variable in height than those in Hong Kong.