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APPLIED HEALTHCARE STATISTICS PRE-ASSESSMENT WGU C784 QSNS WITH CORRECT
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APPLIED HEALTHCARE STATISTICS PRE-ASSESSMENT WGU C784QSNS WITH CORRECT ANSWERS
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 - Correct 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
B. 11
C. 12.5
D. 15 - Correct Answer - D. 15
Given the following expression: 4 + 7 × (6 - 3)2. What is the answer using proper order
of operations?
A. 25
B. 46
C. 67
D. 99 - Correct Answer - C. 67
Given the following expression: 5 x (30 - 27)2 + 4. What is the correct answer using the
proper order of operations?
A. 34
B. 49
C. 65
D. 81 - Correct Answer - B. 49
What is the greatest common factor of 132 and the square root of 121 using prime
factorization?
A. 1
B. 2
C. 10
D. 11 - Correct Answer - D. 11
What is the greatest common factor of 24 and 84 using prime factorization?
A. 2
B. 4
C. 8
D. 12 - Correct Answer - D. 12
What is 3/14 - 1/7?
A. 1/14
B. 2/7
C. 5/14
D. 3/2 - Correct Answer - A. 1/14
,What is 2/3 + 1/4?
A. 11/12
B. 3/12
C. 3/7
D. 8/3 - Correct Answer - A. 11/12
A patient's protein intake for today has been 15.76g, 8.49g, and 22.58g. What is the
total protein intake rounded to the nearest tenth of a decimal?
A. 46.5g
B. 46.8g
C. 46.9g
D. 47g - Correct Answer - B. 46.8g
Given the equation: (.5475 - .3025) x .15. What is the solution rounded to the nearest
thousandth?
A. .03675
B. .0368
C. .368
D. .037 - Correct Answer - D. .037
An intravenous drip is infused at a rate of 4.5 milliliters per minute. How many milliliters
are infused per hour?
A. .075mL
B. 2.7mL
C. 75mL
D. 270mL - Correct Answer - D. 270mL
A patient's medication was increased by 40 milligrams. What is the percent increase in
the medication if the original medication was 180 milligrams?
A. 2.2%
B. 4.5%
C. 22.2%
D. 45% - Correct Answer - C. 22.2%
What is the Fahrenheit equivalent for a patient's room that needs to be kept at 25
degrees Celsius?
A. 70°
B. 75°
C. 77°
D. 80° - Correct Answer - C. 77°
What is the Celsius equivalent for a patient who is running a fever of 102 degrees
Fahrenheit?
A. 37.9°C
B. 38.9°C
C. 39.9°C
D. 40.9°C - Correct Answer - 38.9°C
What is the value of x in this equation? 2x + 3 = 13
A. 5
B. 10
C. 76
D. 106 - Correct Answer - A. 5
,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 - Correct Answer - D. 23/12
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?
A. 16
B. 21
C. 26
D. 31 - Correct Answer - A. 16
Question #22: Five hundred values are normally distributed with a mean of 125 and a
standard deviation of 10. Which percent of the values lies between the interval 115-
135?
A. 50
B. 68
C. 95
D. 99 - Correct Answer - B. 68
Question #23: A pediatric unit wants to know what the median age is of its adolescent
population so they can focus on activities for these clients. The unit staff recorded the
ages of 12 adolescents over a three month period:
Age(s): Frequency(ies):
13 1
16 2
17 2
18 3
19 4
What is the median age?
A. 18.6
B. 17
C. 17.2
D. 18 - Correct Answer - D. 18
Question #24: 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?
A. Mean < Median < Mode
B. Mode < Median < Mean
C. Mean < Mode < Median
D. Median < Mode < Mean - Correct Answer - B. Mode < Median < Mean
Question # 25: 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 - Correct Answer - B. 154
Question # 29: 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?
A. Box plot
B. Stem plot
C. Bar chart
D. Pie chart - Correct Answer - B. Stem plot
Question # 30: 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?
A. Stem plot
B. Pie chart
C. Bar chart
D. Histogram - Correct Answer - A. Stem plot
Given the following dataset representing hours of overtime worked by nurses in one
week:
[Nurse A] 3
[Nurse B] 7
[Nurse C] 2
[Nurse D] 4
What should be used to display the data?
A. Box plot
B. Stem plot
C. Bar chart
D. Histogram - Correct Answer - C. Bar chart
Question # 35: A study was conducted on the possible relationship between gender and
whether or not they exercise. Which type of classification is this?
A. Categorical to categorical
B. Categorical to quantitative
C. Quantitative to quantitative
D. Quantitative to categorical - Correct Answer - A. Categorical to categorical
Question #36: A study was conducted on the possible relationship between age and
diastolic blood pressure. Which type of classification is this?
A. Categorical to categorical
B. Quantitative to categorical
C. Categorical to quantitative
D. Quantitative to quantitative - Correct Answer - D. Quantitative to quantitative
Question #37: A study was conducted on the possible relationship between a
categorical variable and a quantitative variable. Which type of graphical display is
appropriate for displaying this relationship?
A. Scatterplot
B. Two-way table
C. Decision table
D. Side-by-side box plot - Correct Answer - D. Side-by-side box plot
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