Data Science Foundations - Beginner Level

Question 1
Which option best describes the field of data science?

(A) A subfield of statistics that only deals with survey results.

(B) A branch solely dedicated to storing large volumes of data without further analysis.

(C) An area focused only on creating visually appealing data presentations.

(D) A multidisciplinary field that uses scientific methods, processes, and algorithms to extract insights from data.

Question 2
What is the primary purpose of data collection in a data science project?

(A) To immediately present the data without any processing.

(B) To store as much data as possible without considering its relevance.

(C) To generate complex visualizations before any analysis is done.

(D) To gather raw data that can later be processed and analyzed for valuable insights.

Question 3
Why is data cleaning an important step in the data science process?

(A) Because it only focuses on formatting data to make it look neat.

(B) Because it automatically creates results without human intervention.

(C) Because it identifies and corrects errors, ensuring the data is accurate and reliable.

(D) Because it removes all data that doesn't fit a preconceived hypothesis.

Question 4
What is meant by basic statistical analysis in the context of data science?

(A) Only measuring trends over time without considering variability in the data.

(B) Creating data visualizations without looking at underlying numbers.

(C) Using simple statistical methods to summarize and explore data, like finding averages and distributions.

(D) Applying highly complex statistical models that require advanced mathematical formulas.

Question 5
How can a business benefit from interpreting insights gained through data science?

(A) By focusing only on historical data without planning for future trends.

(B) By relying solely on intuition without considering the patterns found in data.

(C) By treating insights as final answers that don't require further investigation.

(D) By making informed decisions that can improve strategies and address challenges effectively.

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