Skip to content

Graded Quiz :Data Scientist Career Guide and Interview Preparation (IBM Data Analyst Professional Certificate) Answers 2025

1️⃣ Question 1 — Necessary skills for a data scientist

  • ❌ Client service skills

  • Statistics and probability

  • ❌ Higher mathematics such as calculus (helpful but not always required)

  • ❌ Domain-specific knowledge (important but not universally required)

Explanation:
Statistics & probability are core foundations every data scientist must know.


2️⃣ Question 2 — Characteristic function of data scientists

  • ❌ Extract & organize data (data engineering)

  • ❌ Make decisions (business stakeholders)

  • Build ML/DL models for business decisions

  • ❌ Gather raw data (data collection role)


3️⃣ Question 3 — Percentage of global companies using data analytics

  • ❌ 25%

  • ❌ 49%

  • ❌ 78%

  • 82%


4️⃣ Question 4 — Fields where data scientists work

  • Many different fields

  • ❌ Academia

  • ❌ Technology

  • ❌ Math & statistics

Explanation:
Data science is used across healthcare, finance, retail, transport, manufacturing, etc.


5️⃣ Question 5 — Good source of portfolio content

  • ❌ NDA-restricted work

  • Freelance work

  • ❌ Examples found online

  • ❌ Unfinished projects


6️⃣ Question 6 — How to decide skills for your portfolio

  • ❌ Asking friends

  • Reading job listings

  • ❌ Using a template

  • ❌ Including everything


7️⃣ Question 7 — Advice for building a new project

  • ❌ Use random ideas

  • ❌ Avoid messy real-world datasets

  • ❌ Avoid communities

  • Use GitHub to host your projects


8️⃣ Question 8 — Should hobbies/interests be included?

  • ❌ Never

  • ❌ Always

  • ❌ Only if limited experience

  • Some are okay to help employers know you better


9️⃣ Question 9 — Largest part of resume

  • ❌ Skill summary

  • ❌ Contact information

  • ❌ Education

  • Work experience


🔟 Question 10 — Making resume ATS-friendly

  • ❌ Use specialized jargon

  • ❌ Add alt-text

  • ❌ Add image files

  • Use and repeat relevant keywords


🧾 Summary Table

Q Correct Answer
1 Statistics & probability
2 Build ML/DL models
3 82%
4 Many different fields
5 Freelance work
6 Reading job listings
7 Use GitHub
8 Some hobbies are okay
9 Work experience
10 Use/Repeat keywords