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WGU C955 Final Exam Study Guide ( 2026/2027 Update) Applied Probability and Statistics Questions and Answers
WGU C955 Final Exam Study Guide (
2026/2027 Update) Applied Probability and
Statistics Questions and Answers
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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