WGU C955 applied probability and statistics Study
Guide-latest Update and Verified correct
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 arithmetic
Any integer greater than one is either Prime or the 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
Guide-latest Update and Verified correct
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 arithmetic
Any integer greater than one is either Prime or the 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
