Question

this worksheet will help you review key concepts in data science. answer the quest carefully.
part a: vocabulary (match the word to its definition)

1. data a. information that is collected and stored for analysis
2. dataset b. a collection of related data
3. variable c. a characteristic or attribute that can change
4. visualization d. a chart or graph that shows data
5. prediction e. a guess about future outcomes based on data

part b: multiple choice

1. which of the following is an example of data?

• a) a graph
• b) a students test score
• c) a prediction
• d) a definition

answer:

1. which tool is commonly used to organize data?

• a) google sheets
• b) tiktok
• c) netflix
• d) youtube

answer:

1. which of these shows data visually?

• a) a paragraph
• b) a pie chart
• c) a dictionary

Explanation:

1. A student's test score is raw information (data). A graph (visualization) represents data, a prediction is an inference from data, and a definition is a statement of meaning.
2. Google Sheets is a spreadsheet tool for organizing data. TikTok is a social - media app, Netflix is a streaming service, and YouTube is a video - sharing platform.
3. A pie chart is a visual representation of data. A paragraph is textual, and a dictionary is for definitions.

Answer:

1. b) A student's test score
2. a) Google Sheets
3. b) A pie chart