Module 2 Graded Quiz: Python Data Structures :Python for Data Science, AI & Development (Applied Data Science Specialization) Answers 2025

1. Access test group measurements

• experiment_data[1] ✅

• experiment_data[0] ❌

• experiment_data[0:1] ❌

• experiment_data[1][0] ❌

---

2. Difference between simple vs nested tuple access

• Nested tuple structures require multiple indices to access inner elements. ✅

• Accessing nested tuples always returns another tuple ❌

• Simple → positive, nested → negative ❌

• Square brackets vs parentheses ❌

---

3. Result of cart.append([‘hat’,’belt’])

• [‘shirt’, ‘pants’, [‘hat’, ‘belt’]] ✅

• [‘shirt’,’pants’,’hat’,’belt’] ❌

• [‘hat’,’belt’,’shirt’,’pants’] ❌

• [[‘hat’,’belt’], ‘shirt’,’pants’] ❌

---

4. del statement effect

• Copy of list ❌

• Only first/last ❌

• Permanently modifies original list by removing elements ✅

• Returns removed element ❌

---

5. Why proper list copies matter

• Uses less memory ❌

• Changes to copied list won’t affect original; assignment will. ✅

• Only needed for numeric data ❌

• Direct assignment deprecated ❌

---

6. (“Python”,”Data”,”Science”)[1:3]

• (“Python”,”Science”) ❌

• [“Python”,”Data”] ❌

• (“Data”,”Science”) ✅

• [“Data”,”Science”] ❌

---

7. Dictionary values

• “The Bodyguard” & “Saturday Night Fever” ❌

• “1992” & “Saturday Night Fever” ❌

• “The Bodyguard” & “1977” ❌

• “1977” and “1992” ✅

---

8. Add/update dictionary entry

• Use square bracket notation with key to assign/update value. ✅

• insert() ❌

• Immutable ❌

• add() ❌

---

9. V.add(‘C’) result

• {‘A’,’B’} ❌

• Error ❌

• {‘AC’,’BC’} ❌

• {‘A’,’B’,’C’} ✅

---

10. Check if ‘B456’ is authorized

• auth_codes == ‘B456’ ❌

• auth_codes.contains() ❌

• auth_codes.find() ❌

• ‘B456’ in auth_codes ✅

---