WGU C784 – Applied Healthcare Statistics Objective Assessment #1 | Complete Questions & Verified Answers | Latest Update 2025

WGU C784 - Applied Healthcare Statistics Objective Assessment #1 Exam
Most Recent exam COMPLETE (2026) EXAM Questions and Answers
(Verified Answers) (Latest Update 2026)



Question 1

Simplify: 5+3×(22)5 + 3 \times (2^2)5+3×(22)

A. 11
B. 17
C. 19
D. 21

Answer: B. 17

Rationale:

• Order of operations: parentheses → exponents → multiplication/division →
addition/subtraction.
• 22=42^2 = 422=4, then 3×4=123 \times 4 = 123×4=12, finally 5+12=175 + 12 =
175+12=17.



Question 2

Which of the following is a prime number?
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,A. 15
B. 21
C. 29
D. 35

Answer: C. 29

Rationale:

• Prime numbers have only two factors: 1 and itself.
• 29 can only be divided by 1 and 29.



Question 3

Convert 0.75 to a fraction.

A. 3/4
B. 1/2
C. 2/3
D. 7/10

Answer: A. 3/4

Rationale:

• 0.75 = 75/100 = 3/4 when simplified.



Question 4

A dataset has the following numbers: 5, 8, 12, 20, 5. What is the mean?

A. 10
B. 12
C. 8
D. 9

Answer: A. 10

Rationale:
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• Mean = sum / count = (5+8+12+20+5)/5 = 50/5 = 10

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, Question 5

Which is an outlier in the dataset: 10, 12, 11, 13, 50?

A. 12
B. 50
C. 11
D. 13

Answer: B. 50

Rationale:

• Outliers are values significantly distant from the rest of the dataset.



Question 6

What is the median of the numbers 3, 7, 9, 10, 12?

A. 7
B. 9
C. 10
D. 12

Answer: B. 9

Rationale:

• Median = middle number when sorted. Here: 3, 7, 9, 10, 12 → median = 9



Question 7

Convert 45% to a decimal.

A. 0.045
B. 0.45
C. 4.5
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D. 0.0045
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