WGU C784 APPLIED HEALTHCARE
STATISTICS
rational number - correct answer A number that can be written as a ratio of integers, which
means it can be written as a fraction.
product - correct answer The result of multiplying values.
whole number - correct answer A number whose value is 0 or greater and can be represented
without a fractional or a decimal component.
identity property - correct answer The property that 0 can be added to any number without
changing the value of the number. Likewise, 1 can be multiplied by any number without
changing the value of that number.
associative property - correct 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.
perfect square - correct answer The product of any integer with itself yields this. So, a number
is this if it can be written as the square of an integer. For example, 9 is this because 3 * 3 = 9.
Other examples are 16, 25, 36, 49,...
set - correct answer In mathematics: a collection of numbers.
order of operations - correct answer A set of rules that defines the order in which
mathematical operations should be performed
multiplicative inverse - correct answer The number you must multiply x by to get 1. For
example, 5 and 1/5.
,WGU C784 APPLIED HEALTHCARE
STATISTICS
principal square root - correct answer The positive square root of a number.
interval - correct answer A set of numbers between two specified values.
operators - correct answer A word or symbol (such as + or -) that indicates an operation
between values.
commutative - correct 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.
radical sign - correct answer The symbol which indicates to take the square root of the number
that follows.
additive inverse - correct answer Two numbers equidistant from 0 on a number line whose
sum is 0. For example, 3 and -3.
greatest common factor (GCF) - correct answer The greatest number that is both a factor of a
and a factor of b.
factor tree - correct answer A graphical method used to identify the prime factorization of an
integer.
integer - correct answer A number, (positive, negative, or zero), that can be represented
without a fractional or a decimal component.
discrete - correct answer A collection of numbers whose values are distinct, separate, and
unconnected.
, WGU C784 APPLIED HEALTHCARE
STATISTICS
prime factorization - correct answer Determining the set of prime numbers whose product is
the original integer.
continuous - correct answer A collection of numbers whose values are not dividable into
distinct units.
expressions - correct answer A string of terms that are connected by division, addition, and
subtraction operations.
quotient - correct answer The result of a division expression.
exponents - correct answer Sometimes called a power, it is a quantity that represents repeated
multiplication.
factor - correct answer An integer that divides another integer. We say an integer, x, is a factor
of another integer, y, if the quotient y/x is also equal to an integer.
composite number - correct answer A number with more factors than just one and itself. Not a
prime number.
Fundamental Theorem of Arithmetic - correct answer A concept which states that any integer
greater than 1 is either prime or is the product of a unique set of prime numbers.
prime number - correct answer A number with only two factors: one and itself.
percent proportion - correct answer Proportion that is equivalent to the given ratio but has a
denominator of 100.
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