WGU C955 APPLIED PROBABILITY AND STATISTICS LEARNING COMPANION 2026 HYPOTHESIS TESTING AND CONFIDENCE INTERVAL METHODS

WGU C955 APPLIED PROBABILITY AND
STATISTICS LEARNING COMPANION 2026
HYPOTHESIS TESTING AND CONFIDENCE
INTERVAL METHODS


◉ Continuous data
Answer: 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
Answer: Days of the week


◉ Expressions
Answer: A group of symbols such as numbers and operators that has
mathematical validity


◉ Commutative
Answer: The order in which the numbers appear in the sum can be
reversed

,◉ Identity property
Answer: Adding 0 to any number does not change the original
number


◉ Additive inverse
Answer: Values that are equally far from 0 on the number line.


◉ Negative
Answer: When multiplying a positive number by a negative number
the result is always


◉ Positive
Answer: Multiplying a negative number by a negative number
results in a positive


◉ Factors
Answer: Integers that evenly divide the initial integer


◉ Prime number
Answer: Positive integer with exactly two positive factors consisting
of 1 and itself


◉ Composite number

, Answer: Has at least one positive factor other than one and itself


◉ Factorization
Answer: Process of breaking up a composite number into its prime
factors


◉ fundamental theorem of arithmetic
Answer: Any integer greater than one is either Prime or the product
of Prime numbers


◉ Principal square root
Answer: Positive square root of a number


◉ Radican
Answer: Number under radical sign √16=4


◉ Open Circle
Answer: Represents less than or greatest than on the number line


◉ Perfect square
Answer: Product of any integer with itself yields a perfect square.