WGU C784 APPLIED HEALTHCARE STATISTICS
– OBJECTIVE ASSESSMENT 1 QUESTIONS AND
100% VERIFIED ANSWERS WITH RATIONALES
GRADED A+
GUARANTEED PASS ON THE FIRST ATTEMPT
1. Evaluate the following expression:
8+6÷3×28 + 6 \div 3 \times 28+6÷3×2
A. 12
B. 10
C. 16
D. 20
Correct Answer: A
Rationale: Division and multiplication occur before addition:
6 ÷ 3 = 2 → 2 × 2 = 4 → 8 + 4 = 12.
2. Which fraction is equivalent to 68\frac{6}{8}86?
A. 23\frac{2}{3}32
B. 34\frac{3}{4}43
C. 45\frac{4}{5}54
D. 56\frac{5}{6}65
Correct Answer: B
Rationale: Dividing numerator and denominator by 2 gives 3/4.
,3. Convert 0.375 to a fraction.
A. 3/8
B. 5/16
C. 7/16
D. 1/3
Correct Answer: A
Rationale: 0.375 = 375/1000 = 3/8 when simplified.
4. What is the square root of 144?
A. 10
B. 11
C. 12
D. 14
Correct Answer: C
Rationale: 12 × 12 = 144.
5. Which number is composite?
A. 7
B. 11
C. 13
D. 15
Correct Answer: D
Rationale: Composite numbers have more than two factors; 15 = 3 × 5.
,6. Solve for x:
3x+9=243x + 9 = 243x+9=24
A. 3
B. 5
C. 7
D. 11
Correct Answer: B
Rationale: 3x = 15 → x = 5.
7. A medication dosage increases from 40 mg to 50 mg. What is the percent
increase?
A. 10%
B. 20%
C. 25%
D. 40%
Correct Answer: B
Rationale: Increase = 10 ÷ 40 = 0.25 → 25% ❌ Wait check: 10/40 = 0.25 = 25%.
Correct answer C.
✅ Corrected Answer: C
8. Which measure of central tendency is most affected by outliers?
A. Median
B. Mode
C. Mean
D. Range
Correct Answer: C
Rationale: The mean is sensitive to extreme values.
, 9. Patient ages are: 22, 24, 25, 25, 26. What is the mode?
A. 22
B. 24
C. 25
D. 26
Correct Answer: C
Rationale: The mode is the most frequently occurring value.
10. Which statistic best describes variability?
A. Mean
B. Median
C. Standard deviation
D. Mode
Correct Answer: C
Rationale: Standard deviation measures spread around the mean.
11. Which dataset would most likely be skewed right?
A. Height of adults
B. Test scores with many low values
C. Income data
D. Birth weights
Correct Answer: C
Rationale: Income data often has high outliers pulling the distribution right.
12. The median is best described as:
A. The average
B. The most common value
C. The middle value
D. The total sum
– OBJECTIVE ASSESSMENT 1 QUESTIONS AND
100% VERIFIED ANSWERS WITH RATIONALES
GRADED A+
GUARANTEED PASS ON THE FIRST ATTEMPT
1. Evaluate the following expression:
8+6÷3×28 + 6 \div 3 \times 28+6÷3×2
A. 12
B. 10
C. 16
D. 20
Correct Answer: A
Rationale: Division and multiplication occur before addition:
6 ÷ 3 = 2 → 2 × 2 = 4 → 8 + 4 = 12.
2. Which fraction is equivalent to 68\frac{6}{8}86?
A. 23\frac{2}{3}32
B. 34\frac{3}{4}43
C. 45\frac{4}{5}54
D. 56\frac{5}{6}65
Correct Answer: B
Rationale: Dividing numerator and denominator by 2 gives 3/4.
,3. Convert 0.375 to a fraction.
A. 3/8
B. 5/16
C. 7/16
D. 1/3
Correct Answer: A
Rationale: 0.375 = 375/1000 = 3/8 when simplified.
4. What is the square root of 144?
A. 10
B. 11
C. 12
D. 14
Correct Answer: C
Rationale: 12 × 12 = 144.
5. Which number is composite?
A. 7
B. 11
C. 13
D. 15
Correct Answer: D
Rationale: Composite numbers have more than two factors; 15 = 3 × 5.
,6. Solve for x:
3x+9=243x + 9 = 243x+9=24
A. 3
B. 5
C. 7
D. 11
Correct Answer: B
Rationale: 3x = 15 → x = 5.
7. A medication dosage increases from 40 mg to 50 mg. What is the percent
increase?
A. 10%
B. 20%
C. 25%
D. 40%
Correct Answer: B
Rationale: Increase = 10 ÷ 40 = 0.25 → 25% ❌ Wait check: 10/40 = 0.25 = 25%.
Correct answer C.
✅ Corrected Answer: C
8. Which measure of central tendency is most affected by outliers?
A. Median
B. Mode
C. Mean
D. Range
Correct Answer: C
Rationale: The mean is sensitive to extreme values.
, 9. Patient ages are: 22, 24, 25, 25, 26. What is the mode?
A. 22
B. 24
C. 25
D. 26
Correct Answer: C
Rationale: The mode is the most frequently occurring value.
10. Which statistic best describes variability?
A. Mean
B. Median
C. Standard deviation
D. Mode
Correct Answer: C
Rationale: Standard deviation measures spread around the mean.
11. Which dataset would most likely be skewed right?
A. Height of adults
B. Test scores with many low values
C. Income data
D. Birth weights
Correct Answer: C
Rationale: Income data often has high outliers pulling the distribution right.
12. The median is best described as:
A. The average
B. The most common value
C. The middle value
D. The total sum
