WGU C784 – Applied Healthcare Statistics OA
#1 (2025/2026 Latest Exam Prep) | Complete
Study Guide & Verified Q&A
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 answerD. +/- 5
Composite Number - correct answerA number with more factors that just one and itself.
Equivalent Fractions - correct answerDifferent fractions that represent the same value.
X-Axis - correct answerThe horizontal line that passes through the origin on a
coordinate plane.
Qualitative Data - correct answerNon-numeric information based on some quality or
characteristic.
No Correlation - correct answerThere is no apparent overall trend between the two
variables. If the correlation coefficient is 0, this only rules out a linear trend. There could
be a non-linear or curvilinear trend.
Extrapolate - correct answerUsing information from a data set to make predictions about
data outside of the original set.
Event - correct answerAn outcome, or set of outcomes, whose chance of occurrence
can be represented with a probability.
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 answerD. 15
Operation - correct answerIn Mathematics, an operation is a procedure which generates
a new value from one or more operands, or Mathematical values.
, Conditional Proportion - correct answerA proportion where one part of the proportion is
a variable, or unknown quantity.
Coefficients - correct answerA number by which a number is multiplied. This number is
written in front of the variable(s).
Mean - correct answerAverage, calculated by adding a series of elements in a data set
together and dividing by the total number in the series.
Outlier - correct answerAn observation point that is statistically distant from the other
observations in the dataset.
Regression Line - correct answerThe line of best fit to show the relationship between
variables, the one that minimizes distance from each data point to the line.
Experiment - correct answerA procedure that can be done repeatedly which has a well
defined set of outcomes.
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 answerC. 67
Multi-Step Expression - correct answerAn expression or equation with more than two
values and two or more operators that requires multiple steps to be solved.
Improper Fraction - correct answerA fraction where the number in the numerator is
more than the number in the denominator.
Y-Intercept - correct answerThe y-value of the point at which a line intersects with the y-
axis.
Check Sheet - correct answerA structured form or table that allows data to be collected
by marking how often an event has occurred in an certain interval.
Linear - correct answerAn expression or equation of degree 1.
Least Squares - correct answerA technique for finding the regression line.
Sample Size - correct answerThe number of different outcomes for an experiment.
Given the following expression: 5 x (30 - 27)2 + 4. What is the correct answer using the
proper order of operations?
A. 34
#1 (2025/2026 Latest Exam Prep) | Complete
Study Guide & Verified Q&A
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 answerD. +/- 5
Composite Number - correct answerA number with more factors that just one and itself.
Equivalent Fractions - correct answerDifferent fractions that represent the same value.
X-Axis - correct answerThe horizontal line that passes through the origin on a
coordinate plane.
Qualitative Data - correct answerNon-numeric information based on some quality or
characteristic.
No Correlation - correct answerThere is no apparent overall trend between the two
variables. If the correlation coefficient is 0, this only rules out a linear trend. There could
be a non-linear or curvilinear trend.
Extrapolate - correct answerUsing information from a data set to make predictions about
data outside of the original set.
Event - correct answerAn outcome, or set of outcomes, whose chance of occurrence
can be represented with a probability.
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 answerD. 15
Operation - correct answerIn Mathematics, an operation is a procedure which generates
a new value from one or more operands, or Mathematical values.
, Conditional Proportion - correct answerA proportion where one part of the proportion is
a variable, or unknown quantity.
Coefficients - correct answerA number by which a number is multiplied. This number is
written in front of the variable(s).
Mean - correct answerAverage, calculated by adding a series of elements in a data set
together and dividing by the total number in the series.
Outlier - correct answerAn observation point that is statistically distant from the other
observations in the dataset.
Regression Line - correct answerThe line of best fit to show the relationship between
variables, the one that minimizes distance from each data point to the line.
Experiment - correct answerA procedure that can be done repeatedly which has a well
defined set of outcomes.
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 answerC. 67
Multi-Step Expression - correct answerAn expression or equation with more than two
values and two or more operators that requires multiple steps to be solved.
Improper Fraction - correct answerA fraction where the number in the numerator is
more than the number in the denominator.
Y-Intercept - correct answerThe y-value of the point at which a line intersects with the y-
axis.
Check Sheet - correct answerA structured form or table that allows data to be collected
by marking how often an event has occurred in an certain interval.
Linear - correct answerAn expression or equation of degree 1.
Least Squares - correct answerA technique for finding the regression line.
Sample Size - correct answerThe number of different outcomes for an experiment.
Given the following expression: 5 x (30 - 27)2 + 4. What is the correct answer using the
proper order of operations?
A. 34
