C784-Applied Healthcare Statistics
Exam Questions and Complete
Solutions Graded A+.
EXAM
Q1. Given the numbers: 3.3, -2.3, -16, 25. What are the square
roots of the whole number? *(A) +/- 2.3 (B) +/- 3.3 (C) +/- 4 (D)
+/- 5*
A1. D. +/- 5
Whole numbers are non-negative integers. From the set {3.3, -2.3,
-16, 25}, the only whole number is 25. The square roots of 25 are
±5.
Q2. Given: 10, 2.5, -4, -4.5, 5. Sum of only the whole numbers? (A)
5.5 (B) 11 (C) 12.5 (D) 15
A2. D. 15
Whole numbers in the set are 10 and 5. Their sum is 15 (-4 is an
integer, but negative numbers are not classified as 'whole
numbers' for this level of math).
Q3. Solve: 4 + 7 × (6–3)². (A) 25 (B) 46 (C) 67 (D) 99
A3. C. 67
Apply order of operations (PEMDAS). Parentheses first: (3),
exponent: 3²=9, then multiply: 7×9=63, finally add: 4+63=67.
,Q4. What is the greatest common factor (GCF) of 24 and 36? (A) 6
(B) 8 (C) 12 (D) 18
A4. C. 12
Prime factors: 24=2³×3, 36=2²×3². GCF = product of lowest
powers = 2²×3 = 12.
Q5. Which number is composite? (A) 17 (B) 23 (C) 29 (D) 33
A5. D. 33
Composite numbers have more than two factors. 33 = 3 × 11 (1,
3, 11, 33). 17, 23, 29 are prime.
Q6. Which pair represents equivalent fractions? *(A) 1/2 and 2/3
(B) 3/4 and 6/8 (C) 4/5 and 5/4 (D) 2/5 and 5/10*
A6. B. 3/4 and 6/8
Equivalent fractions represent the same value. Simplifying 6/8 =
3/4.
Q7. Define “Coefficient”. (A) A number by itself (B) A number
multiplied by a variable (C) The exponent of a variable (D) An
expression without variables
A7. B. A number multiplied by a variable
In 5x + 2, 5 is the coefficient (multiplies x). 2 is the constant.
Q8. Define "Conditional Proportion". (A) A fraction with a
numerator less than the denominator (B) A proportion that
simplifies to a known value (C) A proportion containing an
unknown variable (D) The product of two equal ratios
A8. C. A proportion containing an unknown variable
, Involves an unknown value (e.g., x/5 = 10), solved by cross-
multiplication.
Q9. What operation does a plus sign (+) represent? (A)
Multiplication (B) Division (C) Subtraction (D) Addition
A9. D. Addition
Fundamental definition – an operation that generates a new value
from operands.
Q10. What is the mean if a nurse works 5, 7, 6, 8, 4 days per
week? (A) 5 (B) 6 (C) 7 (D) 8
A10. B. 6
Mean = (5+7+6+8+4)/5 = 30/5 = 6.
Q11-Q20: Data Types & Visualization
Q11. Temperature is an example of ______ data. (A) Discrete (B)
Continuous (C) Qualitative (D) Ordinal
A11. B. Continuous
Measured (not counted), allowing fractional/decimal values (e.g.,
98.6°F) within an interval.
Q12. A nurse's timesheet tracking days logged in a week is
_____. (A) Continuous (B) Qualitative (C) Discrete (D) Nominal
A12. C. Discrete
Exam Questions and Complete
Solutions Graded A+.
EXAM
Q1. Given the numbers: 3.3, -2.3, -16, 25. What are the square
roots of the whole number? *(A) +/- 2.3 (B) +/- 3.3 (C) +/- 4 (D)
+/- 5*
A1. D. +/- 5
Whole numbers are non-negative integers. From the set {3.3, -2.3,
-16, 25}, the only whole number is 25. The square roots of 25 are
±5.
Q2. Given: 10, 2.5, -4, -4.5, 5. Sum of only the whole numbers? (A)
5.5 (B) 11 (C) 12.5 (D) 15
A2. D. 15
Whole numbers in the set are 10 and 5. Their sum is 15 (-4 is an
integer, but negative numbers are not classified as 'whole
numbers' for this level of math).
Q3. Solve: 4 + 7 × (6–3)². (A) 25 (B) 46 (C) 67 (D) 99
A3. C. 67
Apply order of operations (PEMDAS). Parentheses first: (3),
exponent: 3²=9, then multiply: 7×9=63, finally add: 4+63=67.
,Q4. What is the greatest common factor (GCF) of 24 and 36? (A) 6
(B) 8 (C) 12 (D) 18
A4. C. 12
Prime factors: 24=2³×3, 36=2²×3². GCF = product of lowest
powers = 2²×3 = 12.
Q5. Which number is composite? (A) 17 (B) 23 (C) 29 (D) 33
A5. D. 33
Composite numbers have more than two factors. 33 = 3 × 11 (1,
3, 11, 33). 17, 23, 29 are prime.
Q6. Which pair represents equivalent fractions? *(A) 1/2 and 2/3
(B) 3/4 and 6/8 (C) 4/5 and 5/4 (D) 2/5 and 5/10*
A6. B. 3/4 and 6/8
Equivalent fractions represent the same value. Simplifying 6/8 =
3/4.
Q7. Define “Coefficient”. (A) A number by itself (B) A number
multiplied by a variable (C) The exponent of a variable (D) An
expression without variables
A7. B. A number multiplied by a variable
In 5x + 2, 5 is the coefficient (multiplies x). 2 is the constant.
Q8. Define "Conditional Proportion". (A) A fraction with a
numerator less than the denominator (B) A proportion that
simplifies to a known value (C) A proportion containing an
unknown variable (D) The product of two equal ratios
A8. C. A proportion containing an unknown variable
, Involves an unknown value (e.g., x/5 = 10), solved by cross-
multiplication.
Q9. What operation does a plus sign (+) represent? (A)
Multiplication (B) Division (C) Subtraction (D) Addition
A9. D. Addition
Fundamental definition – an operation that generates a new value
from operands.
Q10. What is the mean if a nurse works 5, 7, 6, 8, 4 days per
week? (A) 5 (B) 6 (C) 7 (D) 8
A10. B. 6
Mean = (5+7+6+8+4)/5 = 30/5 = 6.
Q11-Q20: Data Types & Visualization
Q11. Temperature is an example of ______ data. (A) Discrete (B)
Continuous (C) Qualitative (D) Ordinal
A11. B. Continuous
Measured (not counted), allowing fractional/decimal values (e.g.,
98.6°F) within an interval.
Q12. A nurse's timesheet tracking days logged in a week is
_____. (A) Continuous (B) Qualitative (C) Discrete (D) Nominal
A12. C. Discrete
