WGU C784 APPLIED HEALTHCARE
STATISTICS – COMPLETE OA PREP: 100
PRACTICE QUESTIONS WITH ANSWER
RATIONALES (2026/2027) \ALREADY
GRADED A+ || NEWEST
Section 1: Basic Numeracy and Calculations
1
Q1. A patient consumed 3 of a 240 mL juice can. How many milliliters remain?
• A) 60 mL
• B) 80 mL
• C) 160 mL
• D) 180 mL
Answer: C) 160 mL
1 2 2
Rationale: The remaining fraction is 1 − 3 = 3. Multiply by the total volume: 3 ×
240 = 160 mL.
Q2. A medication order reads 125 mcg. Available tablets are labeled 0.25 mg.
How many tablets will the nurse administer?
• A) 0.25
• B) 0.5
• C) 1
• D) 2
Answer: B) 0.5
Rationale: Convert 125 mcg to mg: 125 mcg = 0.125 mg. Divide desired dose by
available dose: 0.125 ÷ 0.25 = 0.5 tablet.
,Q3. A solution contains 50 mg of drug in 2 mL. How many mg are in 0.6 mL?
• A) 10 mg
• B) 12.5 mg
• C) 15 mg
• D) 20 mg
Answer: C) 15 mg
Rationale: Concentration = 50 ÷ 2 = 25 mg/mL. Dose = 25 × 0.6 = 15 mg.
Q4. Convert 0.45 to a fraction in lowest terms.
45
• A)
100
9
• B) 20
4
• C) 5
9
• D) 50
9
Answer: B) 20
45 45÷5 9
Rationale: 0.45 = 100. Divide numerator and denominator by 5: 100÷5 = 20.
3
Q5. Convert 8 to a decimal.
• A) 0.325
• B) 0.375
• C) 0.425
• D) 0.475
Answer: B) 0.375
Rationale: Divide numerator by denominator: 3 ÷ 8 = 0.375.
Q6. A patient weighs 154 lbs. How many kg? (1 kg = 2.2 lb)
, • A) 63 kg
• B) 70 kg
• C) 77 kg
• D) 338.8 kg
Answer: B) 70 kg
Rationale: 154 ÷ 2.2 = 70 kg.
Q7. 30% of a 500-bed hospital are COVID patients. How many beds are
occupied by non-COVID patients?
• A) 150
• B) 200
• C) 300
• D) 350
Answer: D) 350
Rationale: COVID patients = 30% × 500 = 150. Non-COVID = 500 − 150 = 350.
Q8. What is 15% of 200?
• A) 15
• B) 30
• C) 40
• D) 50
Answer: B) 30
Rationale: 15% = 0.15. 0.15 × 200 = 30.
Section 2: Order of Operations and Algebra
Q9. Given: 4 + 7 × (6 − 3)2 . What is the answer using proper order of
operations?
, • A) 25
• B) 46
• C) 67
• D) 99
Answer: C) 67
Rationale: Using PEMDAS:
1. Parentheses: (6 − 3) = 3
2. Exponent: 32 = 9
3. Multiplication: 7 × 9 = 63
4. Addition: 4 + 63 = 67
Q10. Given: 5 × (30 − 27)2 + 4. What is the correct answer?
• A) 34
• B) 49
• C) 65
• D) 81
Answer: B) 49
Rationale:
1. Parentheses: (30 − 27) = 3
2. Exponent: 32 = 9
3. Multiplication: 5 × 9 = 45
4. Addition: 45 + 4 = 49
2 1
Q11. What is 3 + 4?
11
• A) 12
3
• B) 12
3
• C) 7
8
• D) 3
11
Answer: A) 12
STATISTICS – COMPLETE OA PREP: 100
PRACTICE QUESTIONS WITH ANSWER
RATIONALES (2026/2027) \ALREADY
GRADED A+ || NEWEST
Section 1: Basic Numeracy and Calculations
1
Q1. A patient consumed 3 of a 240 mL juice can. How many milliliters remain?
• A) 60 mL
• B) 80 mL
• C) 160 mL
• D) 180 mL
Answer: C) 160 mL
1 2 2
Rationale: The remaining fraction is 1 − 3 = 3. Multiply by the total volume: 3 ×
240 = 160 mL.
Q2. A medication order reads 125 mcg. Available tablets are labeled 0.25 mg.
How many tablets will the nurse administer?
• A) 0.25
• B) 0.5
• C) 1
• D) 2
Answer: B) 0.5
Rationale: Convert 125 mcg to mg: 125 mcg = 0.125 mg. Divide desired dose by
available dose: 0.125 ÷ 0.25 = 0.5 tablet.
,Q3. A solution contains 50 mg of drug in 2 mL. How many mg are in 0.6 mL?
• A) 10 mg
• B) 12.5 mg
• C) 15 mg
• D) 20 mg
Answer: C) 15 mg
Rationale: Concentration = 50 ÷ 2 = 25 mg/mL. Dose = 25 × 0.6 = 15 mg.
Q4. Convert 0.45 to a fraction in lowest terms.
45
• A)
100
9
• B) 20
4
• C) 5
9
• D) 50
9
Answer: B) 20
45 45÷5 9
Rationale: 0.45 = 100. Divide numerator and denominator by 5: 100÷5 = 20.
3
Q5. Convert 8 to a decimal.
• A) 0.325
• B) 0.375
• C) 0.425
• D) 0.475
Answer: B) 0.375
Rationale: Divide numerator by denominator: 3 ÷ 8 = 0.375.
Q6. A patient weighs 154 lbs. How many kg? (1 kg = 2.2 lb)
, • A) 63 kg
• B) 70 kg
• C) 77 kg
• D) 338.8 kg
Answer: B) 70 kg
Rationale: 154 ÷ 2.2 = 70 kg.
Q7. 30% of a 500-bed hospital are COVID patients. How many beds are
occupied by non-COVID patients?
• A) 150
• B) 200
• C) 300
• D) 350
Answer: D) 350
Rationale: COVID patients = 30% × 500 = 150. Non-COVID = 500 − 150 = 350.
Q8. What is 15% of 200?
• A) 15
• B) 30
• C) 40
• D) 50
Answer: B) 30
Rationale: 15% = 0.15. 0.15 × 200 = 30.
Section 2: Order of Operations and Algebra
Q9. Given: 4 + 7 × (6 − 3)2 . What is the answer using proper order of
operations?
, • A) 25
• B) 46
• C) 67
• D) 99
Answer: C) 67
Rationale: Using PEMDAS:
1. Parentheses: (6 − 3) = 3
2. Exponent: 32 = 9
3. Multiplication: 7 × 9 = 63
4. Addition: 4 + 63 = 67
Q10. Given: 5 × (30 − 27)2 + 4. What is the correct answer?
• A) 34
• B) 49
• C) 65
• D) 81
Answer: B) 49
Rationale:
1. Parentheses: (30 − 27) = 3
2. Exponent: 32 = 9
3. Multiplication: 5 × 9 = 45
4. Addition: 45 + 4 = 49
2 1
Q11. What is 3 + 4?
11
• A) 12
3
• B) 12
3
• C) 7
8
• D) 3
11
Answer: A) 12
