Statistics questions on the ASVAB MK test the three measures of central tendency (mean, median, mode), basic probability, and occasionally the ability to read a simple table or graph. These questions reward careful reading more than advanced mathematical ability.
The three averages: MEAN = sum of all values ÷ number of values (what most people call 'the average'); MEDIAN = middle value when sorted (or average of two middle values for even count); MODE = most frequently occurring value. The exam almost always specifies which one it wants — read carefully.
How these questions were selected
These 10 questions were curated by the 247SimpleTests Editorial Team from our Mathematics Knowledge practice bank. Each was selected because it covers a concept that appears frequently on the real exam and that many candidates find difficult on their first attempt. The full practice test has 25 questions — work through all of them once you've reviewed this guide.
The questions
Question 2
What is the perimeter of a square with side length 9?
- 18
- 27
- 36 ✓
- 81
▶ Show full explanation
Perimeter of square = 4 × side = 4 × 9 = 36.
Source: ASVAB MK, PerimeterQuestion 3
Solve: 2(x + 4) = 22
- 5
- 6
- 7 ✓
- 9
▶ Show full explanation
Distribute: 2x + 8 = 22. Subtract 8: 2x = 14. Divide by 2: x = 7.
Source: ASVAB MK, Distributive PropertyQuestion 4
Which of the following is a prime number?
- 21
- 27
- 37 ✓
- 51
▶ Show full explanation
37 is prime — only divisible by 1 and 37. 21 = 3×7; 27 = 3×9; 51 = 3×17.
Source: ASVAB MK, Prime NumbersQuestion 5
A right triangle has legs of 5 and 12. What is the hypotenuse?
- 13 ✓
- 14
- 15
- 17
▶ Show full explanation
Pythagorean theorem: c² = a² + b² = 25 + 144 = 169. c = √169 = 13.
Source: ASVAB MK, Pythagorean TheoremQuestion 6
What is the slope of the line passing through (2, 3) and (6, 11)?
- 1
- 2 ✓
- 3
- 4
▶ Show full explanation
Slope = (y₂-y₁)/(x₂-x₁) = (11-3)/(6-2) = 8/4 = 2.
Source: ASVAB MK, SlopeQuestion 7
Simplify: x³ × x⁴
- x⁷ ✓
- x¹²
- 2x⁷
- x
▶ Show full explanation
When multiplying same base, add exponents: x³ × x⁴ = x^(3+4) = x⁷.
Source: ASVAB MK, Exponent RulesQuestion 8
The angles of a quadrilateral sum to how many degrees?
- 180°
- 270°
- 360° ✓
- 540°
▶ Show full explanation
A quadrilateral (4 sides) has interior angles summing to 360°. Triangles sum to 180°; each additional side adds 180°.
Source: ASVAB MK, Polygon AnglesQuestion 9
Solve the inequality: 2x - 5 > 9
- x > 2
- x > 7 ✓
- x > 6
- x > 4
▶ Show full explanation
Add 5 to both sides: 2x > 14. Divide by 2: x > 7.
Source: ASVAB MK, InequalitiesQuestion 10
What is the least common multiple (LCM) of 4 and 6?
- 8
- 10
- 12 ✓
- 24
▶ Show full explanation
Multiples of 4: 4, 8, 12... Multiples of 6: 6, 12... First common multiple = 12.
Source: ASVAB MK, LCMBasic probability formula: Probability = Number of favourable outcomes ÷ Total number of possible outcomes. Example: Probability of rolling a 3 on a 6-sided die = 1/6 ≈ 0.167 ≈ 16.7%. COMBINED PROBABILITY (both events): P(A AND B) = P(A) × P(B) if independent. EITHER/OR PROBABILITY: P(A OR B) = P(A) + P(B) - P(A AND B). The ASVAB tests basic single-event probability and occasionally simple combined probability — not advanced combinatorics.
Ready to practice all 25 questions?
The full practice test covers every topic area — practice mode with explanations or timed mock exam mode.
Take the Mathematics Knowledge practice test →Or read the ASVAB exam guide for format, scoring, and study tips.