Unit 5 Review

Front

Bug

Back

Part of a program that does not work correctly.

Answer explanation

Bug refers to a part of a program that does not work correctly. It is an error or flaw that causes unexpected behavior. This is the correct choice as it accurately defines what a bug is.

Front

The image is from Google Trends that plots Cats and Dogs. Choose the most accurate description of what this data is actually showing based on what you know about how Google Trends works.

Back

People search for "dogs" more frequently than "cats"

Answer explanation

The data from Google Trends shows that people search for 'dogs' more frequently than 'cats', indicating a higher interest in dogs.

Front

What is metadata?

Back

Data that is about the data.

Answer explanation

Metadata refers to data that is about the data. It provides information about the content, structure, and context of the data, enabling better understanding and management of the data.

Front

Recognizing patterns and similarities in data visualizations relates to which of the following about the data? Causation, Correlation, Metadata, Filtering

Back

Correlation

Answer explanation

Recognizing patterns and similarities in data visualizations relates to the concept of correlation, which involves identifying relationships and associations between variables.

Front

Which of the following is NOT a benefit of metadata?
- It can be changed without impacting the primary data
- Used for sorting and filtering information
- Increases effective use of data by providing extra information
- Increases search speeds of the database

Back

Increases search speeds of the database

Answer explanation

Metadata provides benefits such as easy modification, sorting/filtering, and enhanced data utilization. However, it does not directly improve search speeds of the database.

Front

What is the goal of the data analysis process?

Back

To gain insight into new information

Answer explanation

The goal of the data analysis process is to gain insight into new information.

Front

A town decides to publicize data it has collected about electricity usage around the city. The data is freely available for all to use and analyze in the hopes that it is possible to identify more efficient energy usage strategies. Which of the following does this situation best demonstrate? Citizen science, Crowdfunding, Open data, Machine Learning

Back

Open data

Answer explanation

The town's decision to publicize electricity usage data demonstrates open data, as it freely provides data for analysis and identifying energy usage strategies.

Front

Which of the following can best be determined using only the data and none of the metadata?
- The average number of hours per day that the car is in use
- The car’s average speed on a particular day
- The distance the car traveled on a particular day
- The number of bicycles the car passed on a particular day

Back

The number of bicycles the car passed on a particular day

Answer explanation

The number of bicycles the car passed can be determined by analyzing the images captured by the camera.

Front

Which of the following applications is most likely to benefit from the use of crowdsourcing? An application that allows users to convert measurement units (e.g., inches to centimeters, ounces to liters), An application that allows users to purchase tickets for a local museum, An application that allows users to compress the pictures on their devices to optimize storage space, An application that allows users to view descriptions and photographs of local landmarks

Back

An application that allows users to view descriptions and photographs of local landmarks

Answer explanation

The application that allows users to view descriptions and photographs of local landmarks is most likely to benefit from crowdsourcing because it can gather information and images from a large number of users, providing a comprehensive and up-to-date database.

Front

A mobile application is used to display local traffic conditions. Which feature best exemplifies the use of crowdsourcing? Users can save an address to be used at a later time. Users can turn on alerts to be notified about traffic accidents. Users can submit updates on local traffic conditions in real time. Users can use the application to avoid heavily congested areas.

Back

Users can submit updates on local traffic conditions in real time.

Answer explanation

The feature that best exemplifies the use of crowdsourcing is the ability for users to submit real-time updates on local traffic conditions.