WGU C784 APPLIED HEALTHCARE STATISTICS
FINAL EXAM: 100 PRACTICE QUESTIONS WITH
DETAILED RATIONALES (2026/2027 UPDATE)
Core Domains:
• Basic Numeracy & Arithmetic (Fractions, Decimals, Percentages, Conversions, Order of
Operations)
• Basic Algebra (Equations, Graphing, Slope-Intercept Form)
• Descriptive Statistics for a Single Variable (Measures of Central Tendency & Spread, Data
Displays)
• Descriptive Statistics for Two Variables (Correlation, Regression Analysis)
• Probability (Basic Probability Rules, Conditional Probability, Addition & Multiplication Rules)
This comprehensive practice exam is designed to prepare students for the WGU C784 Applied Healthcare
Statistics Objective Assessment. This guide covers all seven competencies tested in the course and
provides 100 practice questions with detailed rationales. The course emphasizes the application of
statistical concepts to real-world healthcare scenarios, including dosage calculations, data analysis, and
interpretation of research findings .
SECTION 1: BASIC NUMERACY & ARITHMETIC (Questions 1-20)
Question 1
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
B. 0.5
RATIONALE: Convert 125 mcg to mg: 125 mcg = 0.125 mg. Desired dose (0.125 mg) / Have (0.25 mg
per tablet) = 0.5 tablet .
Question 2
A patient consumed 1/31/3 of a 240 mL juice can. How many milliliters remain?
,A. 60 mL
B. 80 mL
C. 160 mL
D. 180 mL
C. 160 mL
RATIONALE: Remaining fraction = 1−1/3=2/31−1/3=2/3. 2/3×240=1602/3×240=160 mL .
Question 3
A solution contains 50 mg of drug in 2 mL. How many mg in 0.6 mL?
A. 10 mg
B. 12.5 mg
C. 15 mg
D. 20 mg
C. 15 mg
RATIONALE: Concentration = 50 mg / 2 mL = 25 mg/mL. 25 mg/mL × 0.6 mL = 15 mg .
Question 4
Express 0.45 as a fraction in lowest terms.
A. 45/100
B. 9/20
C. 4/5
D. 9/50
B. 9/20
RATIONALE: 0.45=45/100=9/200.45=45/100=9/20 after dividing by 5 .
Question 5
Convert 3/83/8 to a decimal.
A. 0.325
B. 0.375
C. 0.425
D. 0.475
B. 0.375
RATIONALE: 3÷8=0.3753÷8=0.375 .
, Question 6
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
B. 70 kg
RATIONALE: 154/2.2=70154/2.2=70 kg .
Question 7
The dosage ordered is 10 mg/kg/day in two divided doses. The patient weighs 44 lbs. What is each dose?
A. 50 mg
B. 100 mg
C. 200 mg
D. 220 mg
B. 100 mg
RATIONALE: Weight = .2 = 20 kg. Total daily = 10 × 20 = 200 mg. Each dose = = 100
mg .
Question 8
A nurse must give an infusion at 125 mL/hr. How many mL will infuse in 45 minutes?
A. 75 mL
B. 93.75 mL
C. 56.25 mL
D. 125 mL
B. 93.75 mL
RATIONALE: 45 minutes = 0.75 hr. Volume = 125 × 0.75 = 93.75 mL .
Question 9
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
FINAL EXAM: 100 PRACTICE QUESTIONS WITH
DETAILED RATIONALES (2026/2027 UPDATE)
Core Domains:
• Basic Numeracy & Arithmetic (Fractions, Decimals, Percentages, Conversions, Order of
Operations)
• Basic Algebra (Equations, Graphing, Slope-Intercept Form)
• Descriptive Statistics for a Single Variable (Measures of Central Tendency & Spread, Data
Displays)
• Descriptive Statistics for Two Variables (Correlation, Regression Analysis)
• Probability (Basic Probability Rules, Conditional Probability, Addition & Multiplication Rules)
This comprehensive practice exam is designed to prepare students for the WGU C784 Applied Healthcare
Statistics Objective Assessment. This guide covers all seven competencies tested in the course and
provides 100 practice questions with detailed rationales. The course emphasizes the application of
statistical concepts to real-world healthcare scenarios, including dosage calculations, data analysis, and
interpretation of research findings .
SECTION 1: BASIC NUMERACY & ARITHMETIC (Questions 1-20)
Question 1
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
B. 0.5
RATIONALE: Convert 125 mcg to mg: 125 mcg = 0.125 mg. Desired dose (0.125 mg) / Have (0.25 mg
per tablet) = 0.5 tablet .
Question 2
A patient consumed 1/31/3 of a 240 mL juice can. How many milliliters remain?
,A. 60 mL
B. 80 mL
C. 160 mL
D. 180 mL
C. 160 mL
RATIONALE: Remaining fraction = 1−1/3=2/31−1/3=2/3. 2/3×240=1602/3×240=160 mL .
Question 3
A solution contains 50 mg of drug in 2 mL. How many mg in 0.6 mL?
A. 10 mg
B. 12.5 mg
C. 15 mg
D. 20 mg
C. 15 mg
RATIONALE: Concentration = 50 mg / 2 mL = 25 mg/mL. 25 mg/mL × 0.6 mL = 15 mg .
Question 4
Express 0.45 as a fraction in lowest terms.
A. 45/100
B. 9/20
C. 4/5
D. 9/50
B. 9/20
RATIONALE: 0.45=45/100=9/200.45=45/100=9/20 after dividing by 5 .
Question 5
Convert 3/83/8 to a decimal.
A. 0.325
B. 0.375
C. 0.425
D. 0.475
B. 0.375
RATIONALE: 3÷8=0.3753÷8=0.375 .
, Question 6
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
B. 70 kg
RATIONALE: 154/2.2=70154/2.2=70 kg .
Question 7
The dosage ordered is 10 mg/kg/day in two divided doses. The patient weighs 44 lbs. What is each dose?
A. 50 mg
B. 100 mg
C. 200 mg
D. 220 mg
B. 100 mg
RATIONALE: Weight = .2 = 20 kg. Total daily = 10 × 20 = 200 mg. Each dose = = 100
mg .
Question 8
A nurse must give an infusion at 125 mL/hr. How many mL will infuse in 45 minutes?
A. 75 mL
B. 93.75 mL
C. 56.25 mL
D. 125 mL
B. 93.75 mL
RATIONALE: 45 minutes = 0.75 hr. Volume = 125 × 0.75 = 93.75 mL .
Question 9
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
