WGU C784 APPLIED HEALTHCARE
STATISTICS
Actual Questions and Answers
Expert-Verified Explanation
This Exam contains:
✪ Multiple-choice and True/False Format
✪ Expert-Verified Explanations
✪ Verified with Trusted Textbooks
1. Which of the following is a number that can be written as a fraction (a ratio of two integers)?
A. Irrational number
B. Real number
C. Rational number
D. Integer
Answer: C
EXPLANATION: A rational number can be written as a ratio of two integers (e.g., 3/4, -2/1).
2. What is the result of multiplying values?
A. Quotient
B. Product
C. Sum
D. Difference
Answer: B
EXPLANATION: The product is the result of multiplication.
3. Which type of number has a value of 0 or greater and contains no decimals or fractions?
A. Whole number
B. Integer
C. Rational number
D. Real number
Answer: A
EXPLANATION: Whole numbers include 0 and all positive integers without fractions or decimals.
4. What property states that adding 0 or multiplying by 1 does not change a number’s value?
A. Distributive property
B. Associative property
C. Commutative property
D. Identity property
Answer: D
EXPLANATION: The identity property refers to 0 being the additive identity and 1 the multiplicative
identity.
5. Which property allows addition or multiplication to be regrouped without changing the result?
A. Commutative
B. Associative
, C. Distributive
D. Identity
Answer: B
EXPLANATION: The associative property allows grouping of numbers to be changed in
addition/multiplication.
6. A number like 25 or 36 is an example of what type of number?
A. Prime number
B. Integer
C. Perfect square
D. Rational number
Answer: C
EXPLANATION: A perfect square is the result of an integer multiplied by itself.
7. What is a collection of numbers called in mathematics?
A. Data
B. Group
C. Set
D. List
Answer: C
EXPLANATION: A set is a collection of distinct mathematical objects.
8. What defines the order in which operations should be done in math?
A. Identity rule
B. Commutative law
C. Associative law
D. Order of operations
Answer: D
EXPLANATION: The order of operations ensures consistent results (PEMDAS).
9. What is the reciprocal of a number also known as?
A. Quotient
B. Multiplicative inverse
C. Additive inverse
D. Denominator
Answer: B
EXPLANATION: Multiplicative inverse is the number that, when multiplied, gives 1.
10. What is the positive square root of a number called?
A. Square
B. Root
C. Principal square root
D. Perfect square
Answer: C
EXPLANATION: The principal square root is the non-negative root.
11. What term is used to describe a range of numbers between two values?
STATISTICS
Actual Questions and Answers
Expert-Verified Explanation
This Exam contains:
✪ Multiple-choice and True/False Format
✪ Expert-Verified Explanations
✪ Verified with Trusted Textbooks
1. Which of the following is a number that can be written as a fraction (a ratio of two integers)?
A. Irrational number
B. Real number
C. Rational number
D. Integer
Answer: C
EXPLANATION: A rational number can be written as a ratio of two integers (e.g., 3/4, -2/1).
2. What is the result of multiplying values?
A. Quotient
B. Product
C. Sum
D. Difference
Answer: B
EXPLANATION: The product is the result of multiplication.
3. Which type of number has a value of 0 or greater and contains no decimals or fractions?
A. Whole number
B. Integer
C. Rational number
D. Real number
Answer: A
EXPLANATION: Whole numbers include 0 and all positive integers without fractions or decimals.
4. What property states that adding 0 or multiplying by 1 does not change a number’s value?
A. Distributive property
B. Associative property
C. Commutative property
D. Identity property
Answer: D
EXPLANATION: The identity property refers to 0 being the additive identity and 1 the multiplicative
identity.
5. Which property allows addition or multiplication to be regrouped without changing the result?
A. Commutative
B. Associative
, C. Distributive
D. Identity
Answer: B
EXPLANATION: The associative property allows grouping of numbers to be changed in
addition/multiplication.
6. A number like 25 or 36 is an example of what type of number?
A. Prime number
B. Integer
C. Perfect square
D. Rational number
Answer: C
EXPLANATION: A perfect square is the result of an integer multiplied by itself.
7. What is a collection of numbers called in mathematics?
A. Data
B. Group
C. Set
D. List
Answer: C
EXPLANATION: A set is a collection of distinct mathematical objects.
8. What defines the order in which operations should be done in math?
A. Identity rule
B. Commutative law
C. Associative law
D. Order of operations
Answer: D
EXPLANATION: The order of operations ensures consistent results (PEMDAS).
9. What is the reciprocal of a number also known as?
A. Quotient
B. Multiplicative inverse
C. Additive inverse
D. Denominator
Answer: B
EXPLANATION: Multiplicative inverse is the number that, when multiplied, gives 1.
10. What is the positive square root of a number called?
A. Square
B. Root
C. Principal square root
D. Perfect square
Answer: C
EXPLANATION: The principal square root is the non-negative root.
11. What term is used to describe a range of numbers between two values?
