mmw

Question 1

a rule that relates values from a set of value to a second set of value

Answer 1

relation

Question 2

a set of ordered pairs (x,y)

Answer 2

relation

Question 3

what are the terms that can be used in x?

Answer 3

input, independent variable, domain, and abscissa

Question 4

what are the terms that can be used in y?

Answer 4

output, dependent variable, range, ordinate

Question 5

types of relation

Answer 5

one-to-one
one-to-many
many-to-one
many-to-many

Question 6

a relation where each element in the domain is related to only one value in the range

Answer 6

function

Question 7

identify if it is a function of not:

{(2, 3), (-1, 2), (2, 5), (4, 3)}

Answer 7

not function

Question 8

identify if it is a function of not:

{(2, 3), (-1, 2), (3, 5), (4, 3)}

Answer 8

function

Question 9

the development, execution, and supervision of plans, policies, programs, and practices that control the value of data information

Answer 9

data management

Question 10

the process is what statistics is all about

Answer 10

data management

Question 11

a branch of math dealing with the collection, organization, presentation, analysis, and interpretation of data

Answer 11

statistics

Question 12

how do we manage data?

Answer 12

we gather, organize, represent, and interpret

Question 13

Data Gathering

Answer 13

direct or interview method
indirect or questionnaire method
registration method
observation method
experimental method

Question 14

Data collected from whatever manner is called

Answer 14

raw data

Question 15

Data can be classified according to the scale of measurement that four (4) levels of measurement:

Answer 15

nominal scale
ordinal scale
interval scale
retro scale

Question 16

assigns names or labels

Answer 16

nominal scale

Question 17

assigns numbers or labels to observations with implied ordering (highest/lowest)

Answer 17

ordinal scale

Question 18

assigns real numbers to reflect distance between rank positions

Answer 18

interval scale

Question 19

assigns numbers to observations to reflect the existence of absolute zero point

Answer 19

retro scale

Question 20

different ways or forms to present data

Answer 20

textual form
tabular form
graphical form

Question 21

makes use of words, sentences, and paragraphs; commonly used when there are only few numerical data

Answer 21

textual form

Question 22

a systematic presentation of data in rows and columns

Answer 22

tabular form

Question 23

shows numerical values in pictorial form

Answer 23

graphical form

Question 24

good chart should possess the following properties:

Answer 24

accuracy
simple
clear
attractive

Question 25

the dimensional aspect should reflect the highest degree of accuracy

Answer 25

accurate

Question 26

the design should be straightforward

Answer 26

simple

Question 27

it should be easily read and understood

Answer 27

clear

Question 28

it is designed to attract and hold the attention

Answer 28

attractive

Question 29

different types of graphs

Answer 29

line graph bar graph pie chart pictograph

Question 30

used when; (1) data cover long period of time; (2) several series are compared; (3) movements are to be determined; (4) trends are to be established

Answer 30

line graph

Question 31

used to show percentage or the composition by parts of a whole

Answer 31

pie chart

Question 32

used when numerical values that cover a long period of time are compared

Answer 32

bar graph

Question 33

used to immediately suggest the nature of data

Answer 33

pictograph

Question 34

are measures indicating the center of a set of data which are arranged in order of magnitude

Answer 34

measures of central tendency

Question 35

It is described as the point about which the score tends to cluster, hence, regarded as a sort of average in the series

Answer 35

measures of central tendency

Question 36

It is the center of the concentration of the scores

Answer 36

measures of central tendency

Question 37

It is a single number which describes the totality of the set of data collected

Answer 37

measures of central tendency

Question 38

It refers to the parameters of the sample

Answer 38

measures of central tendency

Question 39

three measures of central tendency commonly used

Answer 39

mean median mode

Question 40

is the most popular and well-known measure of central tendency

Answer 40

mean or arithmetic mean (average)

Question 41

It can be used with both discrete and continuous data (although it is used most often with continuous data

Answer 41

mean or arithmetic mean (average)

Question 42

the most frequently used measure of central tendency

Answer 42

mean or arithmetic mean (average)

Question 43

The mean is denoted by a symbol __ for population

Answer 43

μ or mu

Question 44

The mean is denoted by a symbol __ for sample

Answer 44

x̄ or x-bar

Question 45

is the middle score for a set of data arranged in order of magnitude

Answer 45

median

Question 46

best used when data has several extreme entities

Answer 46

median

Question 47

median is denoted by __

Answer 47

Md

Question 48

is the most frequent score in the data set

Answer 48

mode

Question 49

It is sometimes considered as the most popular option

Answer 49

mode

Question 50

only one mode

Answer 50

unimodal

Question 51

2 modes

Answer 51

bimodal

Question 52

more than 2 modes

Answer 52

multimodal

Question 53

all of the numbers in set have the same frequency

Answer 53

no mode

Question 54

formula for population mean

Answer 54

𝜇=(∑𝑥𝑖 )/𝑁

Question 55

formula for sample mean

Answer 55

𝑥 ̅=(∑𝑥𝑖 )/𝑛

Question 56

formula for median if n is odd

Answer 56

𝑀𝑑=𝑋_((𝑛+1)/2)

Question 57

formula for median if n is even

Answer 57

𝑀𝑑=(𝑋_(𝑛/2)+𝑋_((𝑛/2)+1))/2

Question 58

mode is denoted by

Answer 58

Mo