Practice these 10 solved objective-type Statistics MCQs from the 224 – 1st Annual Inter Part 2 (Commerce Group) exam. Each question below includes the verified correct answer and a short explanation. Scroll down to attempt the interactive quiz version with instant scoring.
1. Battery life time is --- variable.
(A) Qualitative (B) Discrete (C) Comparable (D) Continuous
Correct Answer: (D) Continuous — Battery life can take any value within a range (e.g. 5.2 hours, 5.25 hours), so it is a continuous variable.
2. Graph of class boundaries and frequency is:
(A) Histogram (B) Ogive (C) Historigram (D) Bar chart
Correct Answer: (A) Histogram — A histogram plots frequency against class boundaries using adjacent bars.
3. One dimensional diagram is:
(A) Rectangular diagram (B) Square diagram (C) Simple bar chart (D) Pie diagram
Correct Answer: (C) Simple bar chart — In a simple bar chart, only the length of each bar represents the data, making it one-dimensional.
4. Single value which represent a set of data:
(A) Symmetric (B) Central tendency (C) Skew-symmetric (D) Quartile
Correct Answer: (B) Central tendency — A measure of central tendency (mean, median, or mode) is a single value used to represent an entire data set.
5. If Σx = 150, X̄ = 10 then n = ---:
(A) 10 (B) 50 (C) 5 (D) 15
Correct Answer: (D) 15 — Since X̄ = Σx / n, n = Σx / X̄ = 150 / 10 = 15.
6. Mode of 2, 7, 10, 15 is:
(A) Zero (B) No mode (C) 2 (D) 15
Correct Answer: (B) No mode — Since every value appears exactly once with no repetition, this data set has no mode.
7. The year of which index number is 100 known as:
(A) Current year (B) Previous year (C) Chain year (D) Base year
Correct Answer: (D) Base year — By convention, the index number of the base year is always fixed at 100.
8. Consumer price index number is also called ---- index number:
(A) Value (B) Volume (C) Cost of living index (D) Wholesale price
Correct Answer: (C) Cost of living index — The Consumer Price Index measures changes in the cost of a typical basket of goods and services, so it is also called the cost of living index.
9. Probability of getting red card when a card is drawn from 52:
(A) 1/26 (B) 1/52 (C) 26/2 (D) 1/2
Correct Answer: (D) 1/2 — 26 of the 52 cards are red (hearts and diamonds), so the probability is 26/52 = 1/2.
10. If P (A ∩ B) = P (A) . P (B) then A and B are:
(A) Independent (B) Dependent (C) Mutually exclusive (D) Exhaustive
Correct Answer: (A) Independent — The multiplication rule P(A ∩ B) = P(A) × P(B) holds precisely when A and B are independent events.
Now try the interactive version of this quiz below to test your score instantly:
0 Comments