WGU C955 Objective Assessment Applied Probability and Statistics OA
Exam Module 1-Module 7 Questions & Answers
Discrete data Has distinct values, can be counted, had unconnected
points (think dots)
Continuous data Has values within a range, measured not
counted, does not have gaps between data points
(data is connected lines or curves).
Example of discrete data Days of the week
Expressions A group of symbols such as numbers and operators that
has mathematical validity
Commutative The order in which the numbers appear in the sum can be
reversed
Identity property Adding 0 to any number does not change the original
number
Additive inverse Values that are equally far from 0 on the number line.
Negative When multiplying a positive number by a negative
number the result is always
Positive Multiplying a negative number by a negative number
results in a positive
Factors Integers that evenly divide the initial integer
Prime number Positive integer with exactly two positive factors
consisting of 1 and itself
Composite number Has at least one positive factor other than one and itself
Factorization Process of breaking up a composite number into its
prime factors
fundamental theorem of Any integer greater than one is either Prime or the
arithmetic product of Prime numbers
Principal square root Positive square root of a number
Radican Number under radical sign √16=4
Open Circle Represents less than or greatest than on the number line
Perfect square Product of any integer with itself yields a perfect square.
Whole numbers positive numbers with a whole value
Integers Numbers with no fractions or decimal value but can be
positive or negative
Rational numbers Numbers that can be expressed as a fraction or
, decimal values that have that end or repeat
forever. Includes all integers since all integers
can be expressed as fractions.
Real numbers Everything that can be included in a number line
including pi.
Fractions Express numbers which are part of a whole
Numerator Number written before the slash or above the fraction
bar
Proper fraction Numerator is less than denominator and the value of the
fraction is less than one
Improper fraction Numerator is greater than denominator and
therefore is greater than one except with
negative fractions
Mixed numbers A whole number and proper fraction. A negative
sign in front applies to both parts of the mixed
number.
Multiples Integers created by multiplying one number times
another number
Fractions Express numbers which are part of a whole
Numerator Number written before the slash or above the fraction
bar
Proper fraction Numerator is less than denominator and the value of the
fraction is less than one
Improper fraction Numerator is greater than denominator and
therefore is greater than one except with
negative fractions
Mixed numbers A whole number and proper fraction. A negative
sign in front applies to both parts of the mixed
number.
Multiples Integers created by multiplying one number times
another number
Reciprocal The number which of multiplied by divisor gives
you one (like the fraction flipped over)
Terminal decimal Has digits that end
Exam Module 1-Module 7 Questions & Answers
Discrete data Has distinct values, can be counted, had unconnected
points (think dots)
Continuous data Has values within a range, measured not
counted, does not have gaps between data points
(data is connected lines or curves).
Example of discrete data Days of the week
Expressions A group of symbols such as numbers and operators that
has mathematical validity
Commutative The order in which the numbers appear in the sum can be
reversed
Identity property Adding 0 to any number does not change the original
number
Additive inverse Values that are equally far from 0 on the number line.
Negative When multiplying a positive number by a negative
number the result is always
Positive Multiplying a negative number by a negative number
results in a positive
Factors Integers that evenly divide the initial integer
Prime number Positive integer with exactly two positive factors
consisting of 1 and itself
Composite number Has at least one positive factor other than one and itself
Factorization Process of breaking up a composite number into its
prime factors
fundamental theorem of Any integer greater than one is either Prime or the
arithmetic product of Prime numbers
Principal square root Positive square root of a number
Radican Number under radical sign √16=4
Open Circle Represents less than or greatest than on the number line
Perfect square Product of any integer with itself yields a perfect square.
Whole numbers positive numbers with a whole value
Integers Numbers with no fractions or decimal value but can be
positive or negative
Rational numbers Numbers that can be expressed as a fraction or
, decimal values that have that end or repeat
forever. Includes all integers since all integers
can be expressed as fractions.
Real numbers Everything that can be included in a number line
including pi.
Fractions Express numbers which are part of a whole
Numerator Number written before the slash or above the fraction
bar
Proper fraction Numerator is less than denominator and the value of the
fraction is less than one
Improper fraction Numerator is greater than denominator and
therefore is greater than one except with
negative fractions
Mixed numbers A whole number and proper fraction. A negative
sign in front applies to both parts of the mixed
number.
Multiples Integers created by multiplying one number times
another number
Fractions Express numbers which are part of a whole
Numerator Number written before the slash or above the fraction
bar
Proper fraction Numerator is less than denominator and the value of the
fraction is less than one
Improper fraction Numerator is greater than denominator and
therefore is greater than one except with
negative fractions
Mixed numbers A whole number and proper fraction. A negative
sign in front applies to both parts of the mixed
number.
Multiples Integers created by multiplying one number times
another number
Reciprocal The number which of multiplied by divisor gives
you one (like the fraction flipped over)
Terminal decimal Has digits that end
