
Data Science Concepts Worksheet
Quiz
•
Computers
•
9th Grade
•
Practice Problem
•
Medium
Hiu Kao
Used 1+ times
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11 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following best describes metadata?
Data collected from multiple sources over time
The process of making data more accurate
Data about other data
A cleaned version of a dataset
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a key characteristic of citizen science?
It relies only on professional scientists for data collection
It excludes public participation due to data privacy
It uses public contributions to help gather scientific data
It focuses only on computer science problems
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is an example of cleaning data?
Visualizing a bar graph of collected responses
Changing all instances of "NY" and "New York" to "New York"
Collecting more responses for a survey
Adding additional columns to a dataset
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does it mean when there is a correlation between two variables?
One variable causes the other to occur
The variables are exactly the same
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which scenario is an example of crowdsourcing?
A. A company hires a consultant to analyze customer data
B. A teacher grading student surveys
C. An app that lets users submit traffic updates from their phones
D. A robot collecting data from a sensor
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does information differ from raw data?
A. Information includes personal opinions
B. Information is data that has been organized and interpreted
C. Information is less useful than raw data
D. Information is the unprocessed original content
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is an example of data bias?
A dataset where 90% of survey respondents are from one city
Data that has been converted into a visual chart
A data table with multiple columns
A dataset that includes all possible values
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