Nature of the data (spread) - Copyright updated

1. What is the nature of the data?
Scaled? Ordinal?

2. Scaled data can be measured in exact amounts.
12.5 feet30 degrees
140 Miles Per Hour

3. Scaled data can be measured in exact amounts.
1st Place 2nd Place 3rd Place
Ordinal or ranked data provides comparative
amounts.
12.5 feet30 degrees
140 Miles Per Hour

4. Let’s Practice!

5. Determine the type of data in each question
that follows:

6. How much do driving speeds vary across
teenagers on the freeway?
Scaled? Ordinal?

7. How much do driving speeds vary across
teenagers on the freeway?
Scaled? Ordinal?

8. How much do driving speeds vary across
teenagers on the freeway?
Scaled? Ordinal?

9. How much do driving speeds vary across
teenagers on the freeway?
Scaled? Ordinal?
Speed can be measured in exact amounts.
12.5 feet30 degrees
140 Miles Per Hour

10. Next question

11. Scaled? Ordinal?
What are the top 3 states, in terms of overall
sense of well-being?

12. What are the top 3 states, in terms of overall
sense of well-being?
Scaled? Ordinal?

13. What are the top 3 states, in terms of overall
sense of well-being?
Scaled? Ordinal?

14. What are the top 3 states, in terms of overall
sense of well-being?
Scaled? Ordinal?
1st Place 2nd Place 3rd Place
Ordinal or ranked data provides comparative
amounts.

15. Next question

16. How much does giraffe height differ across a
sample of giraffes in the Serengeti?
Scaled? Ordinal?

17. How much does giraffe height differ across a
sample of giraffes in the Serengeti?
Scaled? Ordinal?

18. How much does giraffe height differ across a
sample of giraffes in the Serengeti?
Scaled? Ordinal?

19. How much does giraffe height differ across a
sample of giraffes in the Serengeti?
Scaled? Ordinal?
Height can be measured in exact amounts.
12.5 feet30 degrees
140 Miles Per Hour

20. Final question

21. Which 3 month old babies are in a higher weight
percentile nationally - those born in Eastridge or
Westridge Hospitals?
Scaled? Ordinal?

22. Which 3 month old babies are in a higher weight
percentile nationally - those born in Eastridge or
Westridge Hospitals?
Scaled? Ordinal?

23. Which 3 month old babies are in a higher weight
percentile nationally - those born in Eastridge or
Westridge Hospitals?
Scaled? Ordinal?

24. Which 3 month old babies are in a higher weight
percentile nationally - those born in Eastridge or
Westridge Hospitals?
Scaled? Ordinal?
Percentiles provide comparative amounts. In this case, they
indicate the percentage of 3 month olds that weigh below the
each hospital’s percentage nationally.
Let’s say, 3 month olds born in Eastridge hospital are at the 33rd
percentile in terms of weight. This means 33% of all 3 month olds
born nationally weigh less (a comparison) than those born at
Eastridge. Therefore, 67% weigh more.

25. Percentiles provide comparative amounts. In this case, they
indicate the percentage of 3 month olds that weigh below the
each hospital’s percentage nationally.
Let’s say, 3 month olds born in Eastridge hospital are at the 33rd
percentile in terms of weight. This means 33% of all 3 month olds
born nationally weigh less (a comparison) than those born at
Eastridge. Therefore, 67% weigh more.
Which 3 month old babies are in a higher weight
percentile nationally - those born in Eastridge or
Westridge Hospitals?
Scaled? Ordinal?

26. What is the nature of the data?
Scaled? Ordinal?