WGU C784 Applied Healthcare Statistics
Latest Update Comprehensive Questions
with Approved Answers Graded A+
additive inverse - Answer -Two numbers equidistant from 0 on a number line whose sum is 0. For
example, 3 and -3.
algebraic equation - Answer -Any equation that contains variables, constants, or mathematical
operations.
algebraic expression - Answer -A string of terms that are connected by division, addition, and
subtraction operations.
arithmetic expression - Answer -A string of numbers connected by elementary operations.
association - Answer -A pattern or relationship between two variables.
associative property - Answer -The property that under certain operations in a multi-step
expression, the computations may be done in any order. Commonly represented as (a + b) + c = a + (b +
c). Addition and multiplication both have this property, but subtraction and division do not.
bar chart - Answer -A graph that displays data that is distributed over groups or categories.
bimodal - Answer -A set of data having two modes.
box plot - Answer -A graphical rendering of the range and the first and third quartiles of a data set
with the data set's median in the center.
box plots - Answer -A graphical rendering of the range and the first and third quartiles of a data set
with the data set's median in the center.
butterfly method - Answer -Cross-multiplication method used to determine whether two fractions
are equal. The numerator of one fraction is multiplied by the denominator of the opposite fraction on
both sides.
categorical data - Answer -This type of data, also called qualitative data, consists of data values
that can be sorted into groups or categories.
causation - Answer -A relationship of cause and effect between two or more variables.
center - Answer -One of three measures that describe what is "normal" in a data set: mean,
median, or mode.
cluster - Answer -Several points are grouped together away from the majority of points in a data
set.
, coefficients - Answer -A number by which a variable is multiplied. This number is written in front
of the variable(s).
commutative - Answer -The property that the order of the numbers under the operation does not
change the result. Addition and multiplication have this property: a + b = b + a and ab = ba.
complement - Answer -An event that is the opposite of another event.
composite number - Answer -A number with more factors than just one and itself. Not a prime
number.
conditional percentages - Answer -A way to approximate a percentage by dividing the number of
times an event occurred in an experiment by the total number of respondents in that row or column.
See relative frequency.
conditional proportion - Answer -A proportion where one part of a proportion is a variable, or
unknown quantity.
condtional probability - Answer -A probability that depends on the occurrence of an earlier event.
constant - Answer -A value that is known and unchanging.
contingency table or two-way frequency table - Answer -A table that contains frequency counts for
two categorical variables.
continuous - Answer -A collection of numbers whose values are not dividable into distinct units.
coordinate plane - Answer -A tool for graphing consisting of a horizontal x-axis and a vertical y-axis.
coordinate plane - Answer -A tool used for graphing that is a display of a two-dimensional plane. It
consists of an x-axis and a y-axis; the x-axis being a horizontal number line, the y-axis is a vertical number
line, and the axes meet at the origin (0, 0).
correlation - Answer -A linear relationship between two variables. This relationship can be either
positive or negative.
correlation - Answer -A pattern of two events occurring around the same time. This pattern can be
coincidental, and happen by chance, or causal, when one event causes the other event to occur.
correlation coefficient - Answer -A number between -1 and 1 that indicates the relationship
between the data and the regression line. A value of 1 or -1 indicates a perfect correlation and all the
data lie on the positive or negatively sloped line.
cross multiplying - Answer -A method used to prove that a proportion is true.
cubic - Answer -An expression or equation of degree 3.
data set - Answer -Any collection of numerical values, such as measurements, observations, or
survey responses.
Latest Update Comprehensive Questions
with Approved Answers Graded A+
additive inverse - Answer -Two numbers equidistant from 0 on a number line whose sum is 0. For
example, 3 and -3.
algebraic equation - Answer -Any equation that contains variables, constants, or mathematical
operations.
algebraic expression - Answer -A string of terms that are connected by division, addition, and
subtraction operations.
arithmetic expression - Answer -A string of numbers connected by elementary operations.
association - Answer -A pattern or relationship between two variables.
associative property - Answer -The property that under certain operations in a multi-step
expression, the computations may be done in any order. Commonly represented as (a + b) + c = a + (b +
c). Addition and multiplication both have this property, but subtraction and division do not.
bar chart - Answer -A graph that displays data that is distributed over groups or categories.
bimodal - Answer -A set of data having two modes.
box plot - Answer -A graphical rendering of the range and the first and third quartiles of a data set
with the data set's median in the center.
box plots - Answer -A graphical rendering of the range and the first and third quartiles of a data set
with the data set's median in the center.
butterfly method - Answer -Cross-multiplication method used to determine whether two fractions
are equal. The numerator of one fraction is multiplied by the denominator of the opposite fraction on
both sides.
categorical data - Answer -This type of data, also called qualitative data, consists of data values
that can be sorted into groups or categories.
causation - Answer -A relationship of cause and effect between two or more variables.
center - Answer -One of three measures that describe what is "normal" in a data set: mean,
median, or mode.
cluster - Answer -Several points are grouped together away from the majority of points in a data
set.
, coefficients - Answer -A number by which a variable is multiplied. This number is written in front
of the variable(s).
commutative - Answer -The property that the order of the numbers under the operation does not
change the result. Addition and multiplication have this property: a + b = b + a and ab = ba.
complement - Answer -An event that is the opposite of another event.
composite number - Answer -A number with more factors than just one and itself. Not a prime
number.
conditional percentages - Answer -A way to approximate a percentage by dividing the number of
times an event occurred in an experiment by the total number of respondents in that row or column.
See relative frequency.
conditional proportion - Answer -A proportion where one part of a proportion is a variable, or
unknown quantity.
condtional probability - Answer -A probability that depends on the occurrence of an earlier event.
constant - Answer -A value that is known and unchanging.
contingency table or two-way frequency table - Answer -A table that contains frequency counts for
two categorical variables.
continuous - Answer -A collection of numbers whose values are not dividable into distinct units.
coordinate plane - Answer -A tool for graphing consisting of a horizontal x-axis and a vertical y-axis.
coordinate plane - Answer -A tool used for graphing that is a display of a two-dimensional plane. It
consists of an x-axis and a y-axis; the x-axis being a horizontal number line, the y-axis is a vertical number
line, and the axes meet at the origin (0, 0).
correlation - Answer -A linear relationship between two variables. This relationship can be either
positive or negative.
correlation - Answer -A pattern of two events occurring around the same time. This pattern can be
coincidental, and happen by chance, or causal, when one event causes the other event to occur.
correlation coefficient - Answer -A number between -1 and 1 that indicates the relationship
between the data and the regression line. A value of 1 or -1 indicates a perfect correlation and all the
data lie on the positive or negatively sloped line.
cross multiplying - Answer -A method used to prove that a proportion is true.
cubic - Answer -An expression or equation of degree 3.
data set - Answer -Any collection of numerical values, such as measurements, observations, or
survey responses.
