MATH 1280 Final Exam (Proctored) – Questions and Answers | 2026 Updated | 100% Correct - University of the People.

MATH 1280 Final Exam (Proctored) – Questions and Answers |
2026 Updated | 100% Correct - University of the People.



Section 1: Multiple Choice (1–150)

1. What type of data is “eye color”?
A) Numerical continuous
B) Numerical discrete
C) Categorical nominal
D) Categorical ordinal


✅ C) Categorical nominal




2. What type of data is “income level (low, medium, high)”?
A) Nominal
B) Ordinal
C) Interval
D) Ratio


✅ B) Ordinal




3. Temperature in Celsius is measured on which scale?
A) Nominal
B) Ordinal

,C) Interval
D) Ratio


✅ C) Interval




4. Height in cm is measured on which scale?
A) Nominal
B) Ordinal
C) Interval
D) Ratio


✅ D) Ratio




5. A survey asks “Which brand do you prefer?” This is:
A) Numerical
B) Categorical
C) Continuous
D) Ratio


✅ B) Categorical




6. Number of cars in a parking lot is:
A) Continuous numerical
B) Discrete numerical

,C) Categorical
D) Ordinal


✅ B) Discrete numerical




7. Weight of a person is:
A) Discrete
B) Continuous
C) Nominal
D) Ordinal


✅ B) Continuous




8. The mean of [5, 10, 15] is:
A) 5
B) 10
C) 15
D) 30


✅ B) 10




9. The median of [8, 3, 6, 2, 9] is:
A) 2
B) 6

, C) 8
D) 5.6


✅ B) 6 — Sorted: 2,3,6,8,9.




10. The mode of [2, 4, 4, 6, 6, 6, 8] is:
A) 4
B) 6
C) 2
D) 8


✅ B) 6




11. The range of [1, 5, 9, 15] is:
A) 14
B) 15
C) 9
D) 5


✅ A) 14 — 15-1=14.




12. Variance = 64. Standard deviation = ?
A) 8
B) 16