WGU C955 Final Exam Study Guide (Latest 2023/ 2024 Update) Applied Probability and Statistics | Questions and Verified Answers| 100% Correct

WGU C955 Final Exam Study Guide (Latest 2023/ 2024 Update) Applied Probability and Statistics | Questions and Verified Answers| 100% Correct

WGU C955 Final Exam Study Guide (Latest
2023/ 2024 Update) Applied Probability and
Statistics | Questions and Verified Answers|
100% Correct
Q: expression
Answer:
“A string of terms that are connected by division, addition, and subtraction operations.”
Q: addition
Answer:
Finding the total of two or more values.
Q: interval
Answer:
A set of numbers between two specified values.
Q: difference
Answer:
The result of one number being subtracted from another number.
Q: multi-step expression

Answer:
An expression or equation with more than two values and two or more operators that requires
multiple steps to be solved.
Q: discrete
Answer:
“A collection of numbers whose values are distinct, separate, and unconnected.”
Q: negative number
Answer:
“A number whose value is less than zero. On the number line, they are to the left of zero.”
Q: division
Answer:
Splitting values into equal parts or groups.
Q: estimation
Answer:
Approximating a value for a calculation
Q: radical sign
Answer:
The symbol which indicates to take the square root of the number that follows.

Q: numbers
Answer:
A word or symbol (such as ‘five’ or ’16’) that represents a specific amount or quantity.
Q: exponents
Answer:
“Sometimes called a power, it is a quantity that represents repeated multiplication.”
Q: parentheses
Answer:
“In mathematics, these () are used to separate operations within an expression. Any operations
that lie within parentheses should be performed first.”
Q: real number
Answer:
“Any numbers on the number line. They include zero, negative and positive integers, fractions,
and decimals.”
Q: sum
Answer:
The result of multiple numbers being added together.

Q: square root
Answer:
A number that produces a specified number when it is multiplied by itself.
Q: Fundamental Theorem of Arithmetic
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.
Q: prime number
Answer:
A number with only two factors: one and itself.
Q: operator
Answer:
A word or symbol (such as + or -) that indicates an operation between values.
Q: principal square root
Answer:
“The positive square root of a number. For example, the principal square root of 36 is 6.”
Q: whole number
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run
In math, the horizontal distance between two points.

solution set
Group of all values that satisfy a mathematical statement. Values that satisfy an equation or inequality.

y-axis
The vertical line that passes through the origin on a coordinate plane.

coordinate plane
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).

ratio
Measures one quantity in relation to another quantity.

rise
In math, the vertical distance between two points.

proportion
A true statement in which two ratios are equal to each other.

horizontal line
A line that runs left to right on the coordinate plane, parallel to the x-axis. It has no rise or change in y-value.

y-intercept
The y-coordinate of a point where a line intersects the y-axis.

x-axis
The horizontal line that passes through the origin on a coordinate plane.

slope
The value that describes the direction and steepness of a line drawn on the coordinate plane.

constant of proportionality
Constant value of two proportional quantities, expressed as a ratio.

degree
The largest exponent in an expression.

origin
The point on a coordinate plane where the x-axis and y-axis intersect. Typically, this point represents 0 on both axes.

inequalities
The relationship between two unequal expressions.

ordered pair
Two numbers written in the form (x, y), where x represent the x-value or x-coordinate, and y represents the y-value or y-coordinate.

increasing
Describes a line when X- and Y-coordinates are both gaining in value when moving from the left to the right on a graph. This is associated with a positive slope.

linear inequality
Incorporates inequality signs.

slope-intercept form
A common format for a linear equation. It is of the form y = mx + b, where m is the slope of the line and b is the y-intercept.

decreasing
Describes a line when X- and Y-coordinates are both reducing in value when moving from the left to the right on a graph. This is associated with a negative slope.

coordinates
Identifies the location of the point in relation to axes on a graph. The x- and y-value of a point.

number line
A line in which points are matched to real numbers. The numbers increase in value as you move to the right.

one-step equations
An equation that only requires one inverse operation to solve.

like term
A term that has the same variable(s) with the same exponent(s) as another term. The term can be combined with another like term using addition or subtraction.

integer
A number (positive, negative, or zero) that can be represented without a fractional or a decimal component.

parentheses
In mathematics, these symbols are used to separate operations within an expression. Any operations that lie within these symbols should be performed first. These symbols are also used to denote multiplication when a number or variable lies directly outside of them.

quotient
The result of division.

arithmetic expression
A set of numbers connected by operations.

perimeter
The sum of the lengths of the sides of a two-dimensional figure.

base number
The number multiplied by itself when paired with an exponent. For example, in 83, 8 would be the base number.

equation
Two mathematical expressions separated by the equals sign, =. The two expressions on either side of the equals sign hold the same value as one another.

factor
An integer that evenly divides another integer.

independent variable
The variable that may be the cause of some result, or is presented as variable that offers an explanation. Also called an explanatory variable.

property of equality
If you perform equivalent operations to both sides of an equation, the result will always be an equivalent equation.

dependent variable
What is measured in an experiment. Also called a response variable, this is what is influenced as a result of an independent variable.

greatest common factor (GCF)
The greatest number that divides evenly into a given set of numbers.

coefficient
A number by which a variable is being multiplied.

factoring
In algebra, breaking an expression into its factors. These factors can be multiplied together, producing the original expression.

unlike term
A term that does not have the same variable(s) with the same exponent(s) as another term. The terms cannot be combined using addition or subtraction.

algebraic expression
A string of terms that are connected by division, addition, and subtraction operations.

A string of terms that are connected by division, addition, and subtraction operations.

product
The result of multiplying.

inverse operation
An operation that undoes another operation.

order of operations
A set of rules that defines the order in which mathematical operations should be performed.

equal sign
The symbol ‘=.’ Used in an equality to indicate that the expressions on either side of the symbol are equal to each other, or have the same values.

distance formula
Distance equals rate multiplied by time.

degree
The largest exponent in an expression.

combine like terms
Combining terms that have the same variable component. Combining like terms helps to consolidate when solving an equation.

variable
A symbol, such as x, that represents an amount or quantity that can change value.

value
A number or numerical worth.

distributive property
A mathematical principle used to multiply one term by multiple terms. This principle is employed when there are parentheses around multiple terms, which are in turn multiplied by a single term.

exponent
Sometimes called a power, it is a number that shows how many times the base is multiplied by itself. For example, the 3 in 8^3.

substitution
When a variable is plugged back into the equation for the chosen variable and solved.

constant
A value that is known and unchanging.

sequence
Numbers or shapes in a particular order.

output
A dependent variable (y) in a relation or function.

domain
The set of values available for the input or independent variable, such as x.

relation
A relationship between two sets: a set of inputs and a set of outputs.

input
An independent variable (x) in a relation or function.

function
A relationship in which each distinct input produces a single, distinct output.

range
Output values.

vertical line test
A test conducted utilizing vertical lines to determine whether or not the curve of a graph is a function.

geometric pattern
A set of shapes with a repetitive order, also known as a shape pattern.

common ratio
The amount each consecutive term is multiplied by in a geometric sequence.

ellipsis
A symbol made up of three dots (…) that is used at the end of a sequence to indicate that the sequence is infinite, or goes on forever. Used in the middle of a sequence, it indicates continuing.

arithmetic pattern
A set of numbers with a constant difference between consecutive terms.

term
An individual number or variable, or numbers and variables multiplied together in an expression, separated by addition, +, subtraction, -, or division ÷ signs. Numbers or variables separated by an operation symbol or equal sign.

set
A collection of things. In the context of math, these are usually collections of numbers.

shape pattern
A set of shapes with a repetitive order, also known as a geometric pattern.

operation
A mathematical calculation or process. The most common are addition, subtraction, multiplication, and division.