RQB_Data

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RQB_Data_1

Who are you today? *

1. *

1 point

(A) I only

(B) I and II only

II and III only

2. Which of the following statements about data analysis and processing is NOT true given modern computing technology? *

1 point

(A) Storage often presents significant challenges when processing large datasets.

(B) Data scientists typically don't combine data sources to create a larger data set to analyze

(D) Metadata is only useful for datasets that are small enough to be analyzed by hand, so it is often not considered in modern data analysis.

3. *

1 point

(A) I only

(B) I and II only

(D) II and III only

4. Which of the following is NOT an example of metadata? *

1 point

(A) the artist of a song

(B) size of a video file

(D) last revision date for a document

5. A team of students is working on a project for science class. For the project, the students keep track of the weather forecast for 30 days. Each day they record the date, the weather forecast for that day, and whether the forecast was essentially correct for that day. Which of the following pieces of information is NOT metadata, but actual data about the daily weather? *

1 point

(A) The date

(B) The weather forecast

(D) The accuracy of the forecast

6. Data Cleaning is usually undertaken before collected data is ready for analysis. From the choices given, which statement best explains the concept of Data Cleaning? *

1 point

(A) Data Cleaning refers to detecting and correcting corrupt, inaccurate, or incomplete data

(B) Data Cleaning is when collected data is put into different categories for easy processing by a computer.

(D) Data Cleaning is the addition of more metadata in order to give some context to the data collected.

7. As the president of her school’s student council, Kayla is in charge of organizing a fundraiser for the Fall Thriller program. After the event, she is expected to submit a written report with an analysis of how the money was spent, for audit purposes. Kayla has categorized her spending into 4 categories: Promotional Material, Decorations, Food, and Entertainment. Select which type of graph would be best suited to analyze the percentage spending of the different categories? *

1 point

(A) pictograph

(B) scatterplot

(D) pie chart

8. Which observation states that computing power roughly doubles every two years? *

1 point

(A) Murphy's Law

(B) Solomon's Law

(D) Moore's Law

9. Martin is helping his technology teacher create a website for his school. They decide to upload all the senior yearbook pictures to a link on the school website. Senior students can securely login and retrieve their yearbook picture from this link. The students will then be able to print the pictures digitally using a high-resolution color printer made available to them at their school. Martin is nervous about his responsibility because he knows that these pictures are cherished and valued by the seniors. Help Martin choose the correct format for saving the pictures and uploading them to the website. *

1 point

(A) .PNG because it offers lossless compression, and is compatible for viewing on the web.

(B) .JPG because although it is lossy, it is compatible for viewing on the web.

(C) .GIF because it is a lossless compression. Although it is lower quality than a .PNG, it offers the added feature of animation.

(D) Martin can choose any one of the 3 choices, and the quality of the prints will be the same.

10. You are an intern at a construction company and you need to prepare a presentation on the work you have completed. Your presentation will include information about the company’s projects and revenue, your role as an intern, and the projected future of the company. Which of the following applications will be LEAST useful in organizing and analyzing data for this research? *

1 point

(A) Voice over IP software such as Skype

(B) Desktop publishing software such as Microsoft Excel

(D) Internet Browser such as Google Chrome

RQB_Data_1

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