WGU C784 –APPLIED HEALTHCARE STATISTICS PRE-
ASSESSMENT TEST EXAM QUESTIONS AND
VERIFIED ANSWERS GRADED A+ 2024 UPDATE
WGU C784 - Applied Healthcare Statistics Pre-Assessment
What is the value of x in this equation? 2x + 3 = 13
A. 5
B. 10
C. 76
D. 106
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
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
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
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
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
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
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
B. Stem plot
ASSESSMENT TEST EXAM QUESTIONS AND
VERIFIED ANSWERS GRADED A+ 2024 UPDATE
WGU C784 - Applied Healthcare Statistics Pre-Assessment
What is the value of x in this equation? 2x + 3 = 13
A. 5
B. 10
C. 76
D. 106
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
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
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
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
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
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
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
B. Stem plot
