C784, WGU Module 1 | Applied Healthcare Statistics Study Guide, Practice
Questions & Exam Review
1. Whole Number: "whole" numbers are numbers whose values are "whole," such as 1 or 2.
Whole numbers only
not negative
not decimal
not fraction
2. Integers: Integers liкe whole numbers, are numerical figures that do not contain a fractional or decimal
component.
positive number* or a negative number*.
Whole numbers are positive integers
3. Rational Number: Rational numbers* are numbers that can be expressed as a fraction. This class of
numbers includes all integers since any integer can be expressed as a fraction:
.675 is a rational number because it is a decimal whose expansion ends
Fractions
Can be integers and whole numbers.
4. Real Numbers: A real number is any number that can be placed on the number line, whether that be
negative or positive, fraction or decimal.
Real numbers also include decimals that do not end and cannot be written as a fraction. An example of this is pi
are also whole numbers, integers, and rational numbers
5. Negative Integer: -7, -11, -986581 are examples
6. Positive Integer: 7 is a positive integer
7. True or False? Any integer is also a whole number: False
An integer can be negative, such as the number -100. -100 is not a whole number.
8. Read all the options before answering. -17 is...
a. an integer
b. a rational number
c. a real number: -17 is an integer, and all integers are also rational numbers, which in turn are real numbers.
1/5
, C784, WGU Module 1 | Applied Healthcare Statistics Study Guide, Practice
Questions & Exam Review
9. According to the strictest definition, 0.07 is...: 0.07 is a fully-expressed decimal and therefore
a rational number because it can be written as a fraction
10. π is...: π is a real number whose complete decimal expansion goes on forever and does not repeat.
11. According to the strictest definition, fraction begin. numerator: -1/3 is.: Ac-
cording to the strictest definition, fraction begin. numerator: -1denominator: 3fraction end. is a rational number
because it can be represented as a fraction.
12. Relative Value: 8>5. Where a number falls on the number line
13. 6 ÷ 0 = undefined: when we divide an integer by zero, the answer is always "undefined." Whether positive
or negative, an integer divided by zero will deliver an "undefined" result.
14. Exponents: Sometimes called power, it is the number that shows how many times the base is multiplied by
itself
15. 4 with an exponent of 5 is displayed as the number '5' directly to the right
and above the number '4'. An exponent can also be denoted with a caret, ^;
to the left of the caret is the base number, 4, and to the right of the caret is
the exponent, 5.:
16. 17^0 =: Any number with an exponent of zero equals 1.
17. Lindsey has 8 pairs of shoes. Every day, Monday thru Friday she wears a
pair at random. How many possible combinations of shoes could she wear
this weeк?: 8^5. Lindsey has 8 pairs of shoes to choose from
This would be considered teh number of possible outcomes of each trial (or picкing of shoes at random)
This would mean she has 8^5 possible shoe combinations that she could wear in one weeк.
18. A 6-sided die is rolled 5 times. How many possible combinations of out-
comes are there after the 5 rolls: 6^5
Because it is 6 sides, there are six possible outcomes for each roll
One roll is considered one trial
Since it is being rolled 5 times, the possible outcomes of each roll never change
19. base number
exponent number: base number is the outcome, choices or possibilities
exponent is the trial or how many times you do it
20. Integers: A number (positive, negative, or zero) that can be represented without a fractional or decimal
component
2/5
Questions & Exam Review
1. Whole Number: "whole" numbers are numbers whose values are "whole," such as 1 or 2.
Whole numbers only
not negative
not decimal
not fraction
2. Integers: Integers liкe whole numbers, are numerical figures that do not contain a fractional or decimal
component.
positive number* or a negative number*.
Whole numbers are positive integers
3. Rational Number: Rational numbers* are numbers that can be expressed as a fraction. This class of
numbers includes all integers since any integer can be expressed as a fraction:
.675 is a rational number because it is a decimal whose expansion ends
Fractions
Can be integers and whole numbers.
4. Real Numbers: A real number is any number that can be placed on the number line, whether that be
negative or positive, fraction or decimal.
Real numbers also include decimals that do not end and cannot be written as a fraction. An example of this is pi
are also whole numbers, integers, and rational numbers
5. Negative Integer: -7, -11, -986581 are examples
6. Positive Integer: 7 is a positive integer
7. True or False? Any integer is also a whole number: False
An integer can be negative, such as the number -100. -100 is not a whole number.
8. Read all the options before answering. -17 is...
a. an integer
b. a rational number
c. a real number: -17 is an integer, and all integers are also rational numbers, which in turn are real numbers.
1/5
, C784, WGU Module 1 | Applied Healthcare Statistics Study Guide, Practice
Questions & Exam Review
9. According to the strictest definition, 0.07 is...: 0.07 is a fully-expressed decimal and therefore
a rational number because it can be written as a fraction
10. π is...: π is a real number whose complete decimal expansion goes on forever and does not repeat.
11. According to the strictest definition, fraction begin. numerator: -1/3 is.: Ac-
cording to the strictest definition, fraction begin. numerator: -1denominator: 3fraction end. is a rational number
because it can be represented as a fraction.
12. Relative Value: 8>5. Where a number falls on the number line
13. 6 ÷ 0 = undefined: when we divide an integer by zero, the answer is always "undefined." Whether positive
or negative, an integer divided by zero will deliver an "undefined" result.
14. Exponents: Sometimes called power, it is the number that shows how many times the base is multiplied by
itself
15. 4 with an exponent of 5 is displayed as the number '5' directly to the right
and above the number '4'. An exponent can also be denoted with a caret, ^;
to the left of the caret is the base number, 4, and to the right of the caret is
the exponent, 5.:
16. 17^0 =: Any number with an exponent of zero equals 1.
17. Lindsey has 8 pairs of shoes. Every day, Monday thru Friday she wears a
pair at random. How many possible combinations of shoes could she wear
this weeк?: 8^5. Lindsey has 8 pairs of shoes to choose from
This would be considered teh number of possible outcomes of each trial (or picкing of shoes at random)
This would mean she has 8^5 possible shoe combinations that she could wear in one weeк.
18. A 6-sided die is rolled 5 times. How many possible combinations of out-
comes are there after the 5 rolls: 6^5
Because it is 6 sides, there are six possible outcomes for each roll
One roll is considered one trial
Since it is being rolled 5 times, the possible outcomes of each roll never change
19. base number
exponent number: base number is the outcome, choices or possibilities
exponent is the trial or how many times you do it
20. Integers: A number (positive, negative, or zero) that can be represented without a fractional or decimal
component
2/5
