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Final Exam :What is Data Science? (IBM Data Science Professional Certificate) Answers 2025

1️⃣ Question 1

How can data science systems with predictive analytics benefit healthcare professionals?

  • They recommend personalized treatment plans for patients.

  • ❌ They prioritize specific diagnostic tests.

  • ❌ They store a physician’s individual knowledge.

  • ❌ They offer extra information to patients.

Explanation:
Predictive analytics helps create personalized treatment plans by analyzing patterns in patient data.


2️⃣ Question 2

Who coined the term “data science”?

  • ❌ Andrew Gelman and John Doe

  • ❌ Andrew Gelman and DJ Patil

  • ❌ Ada Lovelace and John Doe

  • Correct Answer: NONE OF THESE OPTIONS ARE ACCURATE
    But the closest common attribution in modern context is:

  • ❌ DJ Patil and Marjorie Lee Brown

Correct concept:
The term “data science” originated in the 1960s in academic discussions; it is not credited to a specific pair of individuals.

Explanation:
None of the provided combinations is historically correct.


3️⃣ Question 3

What does “The Sexiest Job of the 21st Century” say will happen when executives become versed in data analytics?

  • ❌ They will change their field to data science.

  • ❌ They will go back to school.

  • Organizations will see real change in their businesses.

  • ❌ They will retire.

Explanation:
When leaders understand analytics, they make better decisions, creating business transformation.


4️⃣ Question 4

What is an absolute must for new data scientists?

  • ❌ Being argumentative

  • ❌ Comfort with analytics platforms

  • Curiosity

  • ❌ Ability to tell a great story

Explanation:
Curiosity drives discovery, exploration, experimentation, and data-driven insights.


5️⃣ Question 5

What change did the Houston Rockets make after analyzing video tracking data?

  • They increased the number of attempted three-point shots.

  • ❌ New way to toss the ball

  • ❌ Emphasized teamwork

  • ❌ Focused more on passing

Explanation:
Analytics showed 3-pointers were more efficient, so they increased them dramatically.


6️⃣ Question 6

Three cloud deployment models?

  • ❌ Infrastructure, Platform, Application

  • Public, Private, Hybrid

  • ❌ Open internet, Exclusive use, Mix of both

  • ❌ Analytical, Efficient, Collaborative

Explanation:
These are the standard deployment models in cloud computing.


7️⃣ Question 7

Why have data science and business analytics become important?

  • ❌ They require an MBA

  • ❌ Availability of traditional techniques

  • ❌ Advancements in statistics

  • Emergence of new tools and abundance of data

Explanation:
Modern tools + massive data availability = rapid rise of data science.


8️⃣ Question 8

Which software provides distributed storage and processing of big data?

  • Hadoop

  • ❌ Python

  • ❌ Salesforce

  • ❌ Photoshop

Explanation:
Hadoop provides distributed storage via HDFS and processing via MapReduce.


9️⃣ Question 9

Which term describes: algorithms that learn and make decisions without explicit programming?

  • ❌ Distributed network

  • ❌ Data scientist

  • Machine learning

  • ❌ Big data

Explanation:
ML systems learn from data rather than following fixed rules.


🔟 Question 10

When data mining, which statement is true?

  • ❌ Hypothesis depends on the data quality

  • ❌ Programming language depends on data quality

  • ❌ Statistics depend on data quality

  • The success of a data mining exercise largely depends on the quality of the data.

Explanation:
Better data → better insights; poor data → poor results.


1️⃣1️⃣ Question 11

Primary focus of generative AI?

  • ❌ Replace curiosity

  • ❌ Determine business needs

  • ❌ Create a story for stakeholders

  • Create new instances that replicate the underlying distribution of data

Explanation:
Generative AI models (GANs, VAEs, LLMs) generate new data resembling the original.


1️⃣2️⃣ Question 12

Which is an example of a recommendation engine?

  • ❌ Text messaging apps

  • ❌ Google Chrome browser

  • Software Facebook uses to deliver advertisements

  • ❌ Spreadsheets

Explanation:
Facebook’s ad-targeting system recommends ads to the right users based on behavior.


🧾 Summary Table

Q Correct Answer Key Concept
1 Personalized treatment plans Predictive analytics in healthcare
2 None (no correct option provided) History of “data science” term
3 Organizations see real change Analytics-driven leadership
4 Curiosity Essential DS quality
5 More 3-point shots Sports analytics
6 Public, Private, Hybrid Cloud deployment
7 New tools + lots of data Rise of DS
8 Hadoop Big data processing
9 Machine learning Algorithms that learn
10 Success depends on data quality Data mining principles
11 Generate new instances of data Generative AI
12 Facebook ad recommendation Recommendation systems