data management

Question 1

is a process by which information is acquired and
processed to ensure the accessibility and reliability of
the data for its users

Answer 1

Data Management

Question 2

is a science which deals with the collection,
organization,presentation, analysis, and interpretation
of data so as to give a more meaningful information.

Answer 2

Statistics

Question 3

One of the most important tool in processing and
managing such information is statistics

Answer 3

Data Management

Question 3

subdivided into two branches, namely: descriptive
statistics and inferential statistics

Answer 3

Statistics

Question 4

refers to the collection,
organization,summary, and
presentation of data

Answer 4

Descriptive Statistics

Question 5

deals with the interpretation and
analysis of data where
conclusion is drawn based from
the subset of the population.

Answer 5

Inferential Statistics

Question 6

Examples are hypothesis testing
and regression analysis

Answer 6

Inferential Statistics

Question 6

Examples are the measures of
location, measures of
variability, skewness and
kurtosis

Answer 6

Descriptive Statistics

Question 7

Is a characteristic or attribute that can assume
different values in different persons, places, or things.

Answer 7

VARIABLE

Question 8

includes age, race, gender, intelligence, personality
type, attitudes, ethnic group or patients, height,
weight, heart rate, marital status, eye color, etc.

Answer 8

VARIABLE

Question 8

data which can assume values that
manifest the concept of attributes.

Answer 8

Qualitative Variables

Question 9

data are obtained from counting or
measuring.

Answer 9

Quantitative Variables

Question 10

are sometimes called categorical
data.

Answer 10

Qualitative Variables

Question 11

Numerical data which represents the
numerical value i.e. how much, how often,
how many

Answer 11

Quantitative Variables

Question 12

Numerical data gives information about the
quantities of a specific thing e.g. height,
length, weight, test score, and so on.

Answer 12

Quantitative Variables

Question 13

this type of data can’t be
measured but it can be counted.
e.g. number of students in a
class

Answer 13

Discrete Variables

Question 13

e.g. person’s gender, home town,
birthdate, post code, marital status,
eye color, etc.

Answer 13

Qualitative Variables

Question 14

e.g. variables found in surveys, finance, economics,
questionnaires, and so on.

Answer 14

ordinal

Question 14

Continuous data has an infinite
number of probable values that can
be selected within a given range.

Answer 14

Continuous Variables

Question 14

contains only a finite number of
possible values.

Answer 14

Discrete Variables

Question 15

values in the variable are used to label or classify variables.
_______ data has no order.

Answer 15

Nominal

Question 15

This type of data can’t be counted
but it can be measured. e.g.
temperature range

Answer 15

Continuous Variables

Question 15

words, letters and alpha numeric symbols can be used.

Answer 15

Nominal

Question 16

Ordinal data follows a

Answer 16

natural order

Question 16

values represent discrete and ordered units.

Answer 16

ordinal

Question 17

___ values data do not have a true zero point.

Answer 17

Interval

Question 17

values tell the distances between the measurements in addition to the classification and ordering.

Answer 17

Interval

Question 18

e.g. school type (public, private), religious affiliation (Catholic, Christian, Protestant, Muslim), in a survey 1 used to represent male and 2 used to represent female

Answer 18

Nominal

Question 19

___ values also order units that have the same difference.

Answer 19

Ratio

Question 19

e.g. temperature, the 0ºC

Answer 19

Interval

Question 20

is the most informative level of measurement. The combination of first three levels of measurements.

Answer 20

Ratio

Question 21

___ values the same as interval values, with difference that they have an absolute zero. e.g. height, weight, length,etc.

Answer 21

Ratio