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WGU C784 APPLIED HEALTHCARE STATISTICS OA
ACTUAL EXAM LATEST 2024-2025 COMPLETE 450
QUESTIONS AND ANSWERS VERSION A, B & C WITH A
BONUS PRACTICE TEST
WGU C784 APPLIED HEALTHCARE STAT EXAM A
A survey asked residents to rate their community hospital on a scale of 1 to 10, with 10 being the most happy with the hospital services. The data shows a positively skewed distribution.How are the mean, median and mode related?
- Mean < Median < Mode
- Mode < Median < Mean
- Mean < Mode < Median
- Median < Mode < Mean - ANSWER-B. Mode < Median < Mean
An intensive care unit patient has frequent systolic blood pressure measures represented in the
following data set: 140, 150, 154, 154, 170, 176, 180. What is the mode?
A. 140
B. 154
C. 160.57
D. 170 - ANSWER-B. 154
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The following weights were recorded for children in a pediatrician's office: 93, 84, 70, 48, 59, 66, 88, 94, 84, 67, 74, 58, 82. The analyst wants to see the distribution of the weights, but still be able to see the individual values. Which method of display should be used?
- Box plot
- Stem plot
- Bar chart
- Pie chart - ANSWER-B. Stem plot
The following heart rates were recorded for patients in an intensive care unit: 98, 88, 74, 83, 76, 99, 81, 73, 60, 66, 88, 94, 73, 82, 95, 85, 76. Which method of display is appropriate to see the exact values of individual observations?
- Stem plot
- Pie chart
- Bar chart
- Histogram - ANSWER-A. Stem plot
Solve the following equation: x − 5/4 = 2/3. What is the value of x?
A. 3/12
B. 7/12
C. 10/12
D. 23/12 - ANSWER-D. 23/12
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Question #21: Battery lifetime is normally distributed for large samples. The mean lifetime is 500 days, and the standard deviation is 61 days. Which percent of batteries have lifetimes longer than 561 days?
- 16
- 21
- 26
D. 31 - ANSWER-A. 16
Given the following set of numbers: 3.3, -2.3, -16, 25. What are the square roots of the whole number?
A. +/- 2.3
B. +/- 3.3
C. +/- 4
D. +/- 5 - ANSWER-D. +/- 5
Given the following set of numbers: 10, 2.5, -4, -4.5, 5. What is the sum when adding together only the whole numbers?
A. 5.5
- 11
C. 12.5
D. 15 - ANSWER-D. 15
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Given the following expression: 4 + 7 × (6 - 3)2. What is the answer using proper order of operations?
- 25
- 46
- 67
D. 99 - ANSWER-C. 67
Given the following expression: 5 x (30 - 27)2 + 4. What is the correct answer using the proper order of operations?
- 34
- 49
- 65
D. 81 - ANSWER-B. 49
What is the greatest common factor of 132 and the square root of 121 using prime factorization?
- 1
- 2
- 10
- 11 - ANSWER-D. 11
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