INFO 103 – Spring 2019-20 – HW #2
Name: Teerth Patel
Student ID: 14404189
Assigned: 04/20/20
Due: 05/8/20
Instructions: Please respond using complete sentences.
1. (10 pts) Describe differences between surveyed, se
...
INFO 103 – Spring 2019-20 – HW #2
Name: Teerth Patel
Student ID: 14404189
Assigned: 04/20/20
Due: 05/8/20
Instructions: Please respond using complete sentences.
1. (10 pts) Describe differences between surveyed, sensed, and sampled data (use examples,
indicating if they fit into multiple categories).
9
2. (5 pts) Provide an example of sensed data that approaches ethical boundaries and discuss
why.
9
3. (5 pts) What is an API in the context of data distribution and collection?
9
4. (5 pts) What does it mean to scrape data? Provide an example.
9
5. (5 pts) Describe some reasons why open-access data might be beneficial to society.
9
6. (2pts) True or False: It is always good for data to be open access. 9
7. (5 pts) Provide three different ways (using examples) in which data can be “dirty.”
9
8. (5 pts) Describe an example data preparation task that does not involve cleaning.
9
9. (5 pts) What is a random seed, and how do they allow for sampling reproducibility?
9
10. (2 pts) True or false: Optical storage devices hold most of the worlds data. 9
11. (2 pts) True or false: More data is being produced than there is room to store it. 9
12. (5 pts) Describe three reasons why cloud-based storage systems are advantageous.
9
13. (2 pts) True or false: A file’s extension necessarily determines its data’s format.9
14. (5 pts) In a 2D ordered array, is it better to represent independent records as rows or
columns and Why?
9
15. (5 pts) Describe an example of data (you can make one up) for which an associative array
structure is more convenient than an ordered array structure.
9
16. (2 pts) Highlight the appropriate acronym to complete the sentence:
9
17. (5 pts) Describe (with examples) the difference between commonality and centrality.
9
18. (5 pts) What is a quantile? Describe how a quantile and quartile are related.
The quantile is defined as the points in a distribution that is mainly related to the rank of the
order of values in the distribution.
The quantile and quartile are related to each other: Four quartile is equal to one quantile.
19. (20 pts)
9
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