1
WGU C784 APPLIED HEALTHCARE STATISTICS FINAL
EXAM 2026/2027 | 100% Correct | Grade A |
Questions & Verified Answers | Pass Guaranteed - A+
Graded
Section 1: Foundational Mathematics for Healthcare (Q1-10)
Q1. A healthcare administrator needs to calculate the remaining budget after
expenses. The calculation is: 4.5 + 3.2 × (2.1 − 0.6) ÷ 0.3. What is the correct result?
A. 20.5 [CORRECT]
B. 9.6
C. 28.5
D. 16.8
Correct Answer: A
Rationale: Following PEMDAS, parentheses first (2.1 − 0.6 = 1.5), then multiplication
and division left to right (3.2 × 1.5 = 4.8; 4.8 ÷ 0.3 = 16), then addition (4.5 + 16 =
20.5). Option B adds before multiplying. Option C incorrectly divides before
parentheses. Option D performs operations strictly left to right.
Q2. A medication concentration is 250 mg per 5 mL. Using a proportion, how many
milliliters are needed to administer 375 mg?
A. 5.5 mL
B. 6.5 mL
C. 7.5 mL [CORRECT]
D. 8.5 mL
Correct Answer: C
Rationale: Set up the proportion 250/5 = 375/x and cross-multiply: 250x = 1,875, so
x = 7.5 mL. Options A, B, and D result from arithmetic errors or incorrect cross-
multiplication.
,2
Q3. A hospital has 450 licensed beds and 600 staff nurses. What is the simplified ratio
of nurses to beds?
A. 3:4
B. 4:3 [CORRECT]
C. 3:2
D. 2:3
Correct Answer: B
Rationale: The ratio 600:450 reduces by dividing both by 150 to get 4:3. Option A
reverses the ratio. Options C and D result from incorrect greatest common divisor
division.
Q4. A quality improvement report states that 12.5% of 840 surveyed patients
experienced a medication error. How many patients is this?
A. 95 patients
B. 100 patients
C. 105 patients [CORRECT]
D. 115 patients
Correct Answer: C
Rationale: 0.125 × 840 = 105. Option A uses 0.113. Option B uses 0.119. Option D
uses 0.137.
Q5. A hospital's surgical site infection rate decreased from 8% to 6% after
implementing a new protocol. What is the percentage decrease?
A. 20%
B. 25% [CORRECT]
C. 33.3%
D. 2%
,3
Correct Answer: B
Rationale: Percentage decrease = [(Original − New) / Original] × 100 = [(8 − 6) / 8]
× 100 = 25%. Option A uses the new value as the denominator. Option C calculates
the increase from 6 to 8. Option D subtracts without dividing.
Q6. A pediatric dose calculation yields 2.37 mL. According to rounding rules for
medication administration, how should this be rounded if the volume is greater than
1 mL?
A. 2.3 mL
B. 2.4 mL [CORRECT]
C. 2.30 mL
D. 2 mL
Correct Answer: B
Rationale: For volumes greater than 1 mL, round to the nearest 0.1 mL; 2.37 rounds
to 2.4. Option A rounds down incorrectly. Option C uses hundredths place, which is
reserved for volumes less than 1 mL. Option D rounds to a whole number, which is
too imprecise.
Q7. A neonatal dose calculation yields 0.286 mL. According to rounding rules for
medication administration, how should this be rounded if the volume is less than 1
mL?
A. 0.2 mL
B. 0.3 mL
C. 0.28 mL
D. 0.29 mL [CORRECT]
Correct Answer: D
Rationale: For volumes less than 1 mL, round to the nearest 0.01 mL; 0.286 rounds to
0.29. Option A rounds to tenths. Option B rounds up incorrectly to tenths. Option C
truncates instead of rounding.
, 4
Q8. A U-100 insulin syringe is used to draw up a calculated dose of 8.45 units of
regular insulin. Which action is correct?
A. Round to 8 units because insulin is dosed in whole units only.
B. Round to 8.5 units for easier measurement.
C. Draw up exactly 8.45 units without rounding [CORRECT]
D. Round to 9 units because partial units are not measurable.
Correct Answer: C
Rationale: Heparin and insulin are high-alert medications that are never rounded;
they must be measured exactly using an appropriate syringe. Options A, B, and D
introduce dangerous dosing errors.
Q9. A hospital's 30-day readmission rate fell from 18% to 14% over one year. What is
the percent decrease?
A. 4%
B. 22.2% [CORRECT]
C. 28.6%
D. 18%
Correct Answer: B
Rationale: [(18 − 14) / 18] × 100 = (4/18) × 100 = 22.2%. Option A is the absolute
difference. Option C uses 14 as the denominator. Option D is the original rate.
Q10. The quality metric formula is: (7.8 − 2.4) ÷ 1.2 + 3.5 × 2. What is the correct
result?
A. 11.5 [CORRECT]
B. 15.5
C. 6.5
D. 20.5
WGU C784 APPLIED HEALTHCARE STATISTICS FINAL
EXAM 2026/2027 | 100% Correct | Grade A |
Questions & Verified Answers | Pass Guaranteed - A+
Graded
Section 1: Foundational Mathematics for Healthcare (Q1-10)
Q1. A healthcare administrator needs to calculate the remaining budget after
expenses. The calculation is: 4.5 + 3.2 × (2.1 − 0.6) ÷ 0.3. What is the correct result?
A. 20.5 [CORRECT]
B. 9.6
C. 28.5
D. 16.8
Correct Answer: A
Rationale: Following PEMDAS, parentheses first (2.1 − 0.6 = 1.5), then multiplication
and division left to right (3.2 × 1.5 = 4.8; 4.8 ÷ 0.3 = 16), then addition (4.5 + 16 =
20.5). Option B adds before multiplying. Option C incorrectly divides before
parentheses. Option D performs operations strictly left to right.
Q2. A medication concentration is 250 mg per 5 mL. Using a proportion, how many
milliliters are needed to administer 375 mg?
A. 5.5 mL
B. 6.5 mL
C. 7.5 mL [CORRECT]
D. 8.5 mL
Correct Answer: C
Rationale: Set up the proportion 250/5 = 375/x and cross-multiply: 250x = 1,875, so
x = 7.5 mL. Options A, B, and D result from arithmetic errors or incorrect cross-
multiplication.
,2
Q3. A hospital has 450 licensed beds and 600 staff nurses. What is the simplified ratio
of nurses to beds?
A. 3:4
B. 4:3 [CORRECT]
C. 3:2
D. 2:3
Correct Answer: B
Rationale: The ratio 600:450 reduces by dividing both by 150 to get 4:3. Option A
reverses the ratio. Options C and D result from incorrect greatest common divisor
division.
Q4. A quality improvement report states that 12.5% of 840 surveyed patients
experienced a medication error. How many patients is this?
A. 95 patients
B. 100 patients
C. 105 patients [CORRECT]
D. 115 patients
Correct Answer: C
Rationale: 0.125 × 840 = 105. Option A uses 0.113. Option B uses 0.119. Option D
uses 0.137.
Q5. A hospital's surgical site infection rate decreased from 8% to 6% after
implementing a new protocol. What is the percentage decrease?
A. 20%
B. 25% [CORRECT]
C. 33.3%
D. 2%
,3
Correct Answer: B
Rationale: Percentage decrease = [(Original − New) / Original] × 100 = [(8 − 6) / 8]
× 100 = 25%. Option A uses the new value as the denominator. Option C calculates
the increase from 6 to 8. Option D subtracts without dividing.
Q6. A pediatric dose calculation yields 2.37 mL. According to rounding rules for
medication administration, how should this be rounded if the volume is greater than
1 mL?
A. 2.3 mL
B. 2.4 mL [CORRECT]
C. 2.30 mL
D. 2 mL
Correct Answer: B
Rationale: For volumes greater than 1 mL, round to the nearest 0.1 mL; 2.37 rounds
to 2.4. Option A rounds down incorrectly. Option C uses hundredths place, which is
reserved for volumes less than 1 mL. Option D rounds to a whole number, which is
too imprecise.
Q7. A neonatal dose calculation yields 0.286 mL. According to rounding rules for
medication administration, how should this be rounded if the volume is less than 1
mL?
A. 0.2 mL
B. 0.3 mL
C. 0.28 mL
D. 0.29 mL [CORRECT]
Correct Answer: D
Rationale: For volumes less than 1 mL, round to the nearest 0.01 mL; 0.286 rounds to
0.29. Option A rounds to tenths. Option B rounds up incorrectly to tenths. Option C
truncates instead of rounding.
, 4
Q8. A U-100 insulin syringe is used to draw up a calculated dose of 8.45 units of
regular insulin. Which action is correct?
A. Round to 8 units because insulin is dosed in whole units only.
B. Round to 8.5 units for easier measurement.
C. Draw up exactly 8.45 units without rounding [CORRECT]
D. Round to 9 units because partial units are not measurable.
Correct Answer: C
Rationale: Heparin and insulin are high-alert medications that are never rounded;
they must be measured exactly using an appropriate syringe. Options A, B, and D
introduce dangerous dosing errors.
Q9. A hospital's 30-day readmission rate fell from 18% to 14% over one year. What is
the percent decrease?
A. 4%
B. 22.2% [CORRECT]
C. 28.6%
D. 18%
Correct Answer: B
Rationale: [(18 − 14) / 18] × 100 = (4/18) × 100 = 22.2%. Option A is the absolute
difference. Option C uses 14 as the denominator. Option D is the original rate.
Q10. The quality metric formula is: (7.8 − 2.4) ÷ 1.2 + 3.5 × 2. What is the correct
result?
A. 11.5 [CORRECT]
B. 15.5
C. 6.5
D. 20.5
