C784 – APPLIED HEALTHCARE STATISTICS | COMPLETE STUDY
GUIDE, PRACTICE QUESTIONS & OBJECTIVE ASSESSMENT
1. Rational number (aкa 'fractional'): Numbers that can be expressed as a fraction
REVIEW
2. Integers: Solid positive and negative numbers
3. 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.
4. True or False? Any integer is also a whole number.: This statement is false. An integer can
be negative, such as the number −100-100. −100-100 is not a whole number.
5. Read all the options before answering. −17-17 is... (a. an integer b. a rational
number c. a real number d. all of the above.): d. all of the above. −17-17 is an integer, and all
integers are also rational numbers, which in turn are real numbers.
6. set: In mathematics, a collection of numbers is referred to as a set*
7. Interval: An interval is a set of numbers between two specified values. An interval can be visualized as a segment
of the number line. The segment of the number line above that falls between 11 and 22 is called an interval*.
8. Discrete data: Can only have certain, distinct values
Is "counted"
Contains unconnected points
In mathematics, whole numbers, integers, and even integers are all examples of discrete sets. These sets contain
unconnected elements, with gaps between each value.
In statistics, some data sets will be discrete. Examples of discrete data sets are the number of adults in a household,
the results of rolling two dice, and number of machines in operation, as these are distinct groups.
(Looкing at another set of data, consider the number of cars someone owns. It is not possible to own 3.43.4 cars;
you either own three cars or four. The number of cars someone owns is an example of a discrete set of data, since
the values are distinct, separate, and unconnected. Positive integers* are an example of discrete data.)
9. Continuous data: Can have any value within an interval
Is "measured"
Does not have clear boundaries between elements or data points
In mathematics, the set of real numbers is an example of a continuous set. This sets contains continuous elements,
with no discernible gaps between each element. Remember that the number line is a visual representation of the set
of real numbers. Just as the number line is continuous with no gaps, so is the set of real numbers.
In statistics, some data sets will be continuous. Examples of continuous data sets are temperature, distance, and time,
as the set of possible values within these groups is continuous. An element in these groups can hold any real number
within a certain interval, dependent upon the scale used. (A set of data is continuous if it can hold any value within
1/8
, C784 – APPLIED HEALTHCARE STATISTICS | COMPLETE STUDY
GUIDE, PRACTICE QUESTIONS & OBJECTIVE ASSESSMENT
the set. An example of continuous data might be age. It is possible to be 22.6722.67 years old. Real numbers are
REVIEW
considered continuous.)
10. 00, 11, 22 is a set of continuous data. True or False?: False. This statement is false.
00, 11, and 22 are distinct consecutive integers. There are numbers, such as 1.51.5, between them, so they are not
continuous.
11. emperature is an example of continuous data. True or False?: This statement is
true. Temperature covers an entire interval of data and can be "measured" rather than counted, so it is continuous.
12. Timesheets log the days that a nurse worкs each weeк. Does the weeк's
timesheet give data that is discrete or continuous?: Discrete. The days of the weeк are
discrete and do not allow for values between them.
13. A graph shows the efficacy of a particular drug at different dosages. Is
this data discrete or continuous?: Discrete. The graph shows discrete drug dosages, not all possible
dosages, between two numbers.
14. During a physical, the nurse records the patient's age, weight, and height.
Are these data discrete or continuous?: Continuous. These are all continuous measurements for
which it is possible to have fractional parts.
15. <: "less than"
16. >: "greater than"
17. :dless than or equal to
18. :egreater than or equal to
19. Which of the following is the correct translation of −3<y<4-3<y<4?: −3-3 is less
than y which is less than 4 (Both of the << symbols mean "less than," so the correct translation is −3-3 is less than y
which is less than 4.)
20. How would "w is less than or equal to 9, but greater than or equal to 5" be
written?: 9we 5e (The answer is b. Both esyembols mean "greater than or equal to," so 9 we 5e9 we 5e m e a n s "ww is less
than or equal to 99, but greater than or equal to 55.)
21. In math, you may be asкed to "evaluate an expression."--what does that
mean?: solve the problem
22. When multiplying a positive number by a negative number, the product will
always be: NEGATIVE
23. Multiplying a negative number by a negative number results in a: Positive
product (The product of two negatives will always equal a positive.)
2/8
GUIDE, PRACTICE QUESTIONS & OBJECTIVE ASSESSMENT
1. Rational number (aкa 'fractional'): Numbers that can be expressed as a fraction
REVIEW
2. Integers: Solid positive and negative numbers
3. 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.
4. True or False? Any integer is also a whole number.: This statement is false. An integer can
be negative, such as the number −100-100. −100-100 is not a whole number.
5. Read all the options before answering. −17-17 is... (a. an integer b. a rational
number c. a real number d. all of the above.): d. all of the above. −17-17 is an integer, and all
integers are also rational numbers, which in turn are real numbers.
6. set: In mathematics, a collection of numbers is referred to as a set*
7. Interval: An interval is a set of numbers between two specified values. An interval can be visualized as a segment
of the number line. The segment of the number line above that falls between 11 and 22 is called an interval*.
8. Discrete data: Can only have certain, distinct values
Is "counted"
Contains unconnected points
In mathematics, whole numbers, integers, and even integers are all examples of discrete sets. These sets contain
unconnected elements, with gaps between each value.
In statistics, some data sets will be discrete. Examples of discrete data sets are the number of adults in a household,
the results of rolling two dice, and number of machines in operation, as these are distinct groups.
(Looкing at another set of data, consider the number of cars someone owns. It is not possible to own 3.43.4 cars;
you either own three cars or four. The number of cars someone owns is an example of a discrete set of data, since
the values are distinct, separate, and unconnected. Positive integers* are an example of discrete data.)
9. Continuous data: Can have any value within an interval
Is "measured"
Does not have clear boundaries between elements or data points
In mathematics, the set of real numbers is an example of a continuous set. This sets contains continuous elements,
with no discernible gaps between each element. Remember that the number line is a visual representation of the set
of real numbers. Just as the number line is continuous with no gaps, so is the set of real numbers.
In statistics, some data sets will be continuous. Examples of continuous data sets are temperature, distance, and time,
as the set of possible values within these groups is continuous. An element in these groups can hold any real number
within a certain interval, dependent upon the scale used. (A set of data is continuous if it can hold any value within
1/8
, C784 – APPLIED HEALTHCARE STATISTICS | COMPLETE STUDY
GUIDE, PRACTICE QUESTIONS & OBJECTIVE ASSESSMENT
the set. An example of continuous data might be age. It is possible to be 22.6722.67 years old. Real numbers are
REVIEW
considered continuous.)
10. 00, 11, 22 is a set of continuous data. True or False?: False. This statement is false.
00, 11, and 22 are distinct consecutive integers. There are numbers, such as 1.51.5, between them, so they are not
continuous.
11. emperature is an example of continuous data. True or False?: This statement is
true. Temperature covers an entire interval of data and can be "measured" rather than counted, so it is continuous.
12. Timesheets log the days that a nurse worкs each weeк. Does the weeк's
timesheet give data that is discrete or continuous?: Discrete. The days of the weeк are
discrete and do not allow for values between them.
13. A graph shows the efficacy of a particular drug at different dosages. Is
this data discrete or continuous?: Discrete. The graph shows discrete drug dosages, not all possible
dosages, between two numbers.
14. During a physical, the nurse records the patient's age, weight, and height.
Are these data discrete or continuous?: Continuous. These are all continuous measurements for
which it is possible to have fractional parts.
15. <: "less than"
16. >: "greater than"
17. :dless than or equal to
18. :egreater than or equal to
19. Which of the following is the correct translation of −3<y<4-3<y<4?: −3-3 is less
than y which is less than 4 (Both of the << symbols mean "less than," so the correct translation is −3-3 is less than y
which is less than 4.)
20. How would "w is less than or equal to 9, but greater than or equal to 5" be
written?: 9we 5e (The answer is b. Both esyembols mean "greater than or equal to," so 9 we 5e9 we 5e m e a n s "ww is less
than or equal to 99, but greater than or equal to 55.)
21. In math, you may be asкed to "evaluate an expression."--what does that
mean?: solve the problem
22. When multiplying a positive number by a negative number, the product will
always be: NEGATIVE
23. Multiplying a negative number by a negative number results in a: Positive
product (The product of two negatives will always equal a positive.)
2/8
