Descriptive Statistics

Question 1

• Used in Descriptive studies
• Means of describing the nature and characteristics of the event under investigation

Answer 1

Descriptive Statistics

Question 2

what is the initial step in data analysis of ANALYTIC RESEARCH?

Answer 2

Descriptive statiscs

Dadaan muna ng descriptive Statistics → inferential → analytic

Question 3

Purpose of Descriptive statistics

just make uhmmm feel it

Answer 3

• presenting of data
• Summarizing data

Question 4

Descriptive Statistics

Give the examples of summarizing data

familiarize lang vebs, wag pahirapan sarili

Answer 4

• Statistical tables
• Statistical graphs
• Measures of Central Tendency (quantitative)
• Measures of Dispersion or Variability (quantitative)
• Measures of Position or Location (quantitative)
• Rates and Ratios (Proportion - Quali)
• Frequency Distribution (Table with frequency - Quali )

FAMILIARIZE! para di kabahan dughan

Question 5

These are measures that describe a typical or representative value in a group of observations.

Answer 5

Measures of Central Tendency

Question 6

Measures of Central Tendency

What are the types of presentations:

Answer 6

• Mean
• Mode
• Median

Question 7

Layman’s concept of “average”

=

Answer 7

mean

Question 8

Population mean -
Sample mean –

Answer 8

Population mean – μ
Sample mean – x (eto lagi mas cinocompute)

Question 9

If u see this card

Answer 9

Familiarize the formula of mean

Question 10

Measures of Central Tendency

• Center of gravity in a set of observations
• Sensitive to extreme values

Answer 10

Mean

Question 11

Measures of Central Tendency

if there is OUTLIER in a mean, what will happen?

Answer 11

the mean is swayed towardsthe extreme side

Question 12

Measures of Central Tendency

Used especially when other statistical techniques like tests of hypothesis are to be applied to the data

Answer 12

Mean

Question 13

Measures of Central Tendency

T or F

mean is the least common measure for central tendency?

Answer 13

F

it is bobo ka ha :P

Question 14

Mean - T or F

Not easy to understand, and complex to calculate

Answer 14

F

EASY and SIMPLE

Question 15

Mean - T or F

Based on all the values and rigidly defined

Answer 15

T

Question 16

Mean - T or F

It is easy to understand even if some of the details of the data are lacking

Answer 16

T

diko rin alam accrding kay polly to

Question 17

Mean - T or F

Based on the position in the series?

Answer 17

F

NOT BASED - icocompute lahat eh

Question 18

Mean - T or F

Easy to locate in the graph

Answer 18

F

Cannot be located graphically

Question 19

Mean

What is the bias of MEAN?

Answer 19

JENO - eme UPWARD

Question 20

What conclusion does mean gives?

Answer 20

Misleading conclusion

Question 21

Measures of Central Tendency

Middlemost value in a set of observations whose magnitudes have been ordered or arrayed.

Answer 21

Median

Question 22

What is the cardinal rule in MEDIAN?

Answer 22

should be in CHRONOLOGICAL ORDER

Question 23

Median - T or F

Very sensitive to extreme values

Answer 23

F

kaya mas favored to kesa sa mean dahil yung GITNA tinitignan

Question 24

What central tendency is used when distribution are markedly skewed?

Answer 24

Median

Question 25

If u see this card

Answer 25

SHAKE THAT PHAT ASSS | ene familiarize median location formula

Question 26

# Median If n is odd, what is the median?

Answer 26

Middle

Question 27

# Median if n is even, what is the median?

Answer 27

average of the 2 middle numbers

Question 28

# Median - T or F Median can be calculated in all distributions?

Answer 28

T

Question 29

# Median - T or F hard to locate graphically

Answer 29

F

Question 30

# Median - T or F for quanti only

Answer 30

F | Qualit and Quanti

Question 31

# Median - T or F harder to understand even for statistics bitches

Answer 31

F | can be understood even by you

Question 32

# Median - T or F it is based on all the values

Answer 32

F | gitna lang

Question 33

# Median - T or F Capable for further math treatment

Answer 33

F | hanggang median lang siya

Question 34

# Median - T or F Affected by fluctuation of sampling

Answer 34

T

Question 35

# Measure of Central Tendency It is the values that occurs most often, and used for categorical or numerical

Answer 35

Mode (Mo)

Question 36

# Mode - T or F THere may not be a mode?

Answer 36

T | not all data has identcal something

Question 37

# Mode - T or F Mode is readily comprehensible and easily calculated

Answer 37

T

Question 38

It is the “highlight” of the data set

Answer 38

Mode

Question 39

What central tendency are OA for extreme values

Answer 39

MEAN | get it cause its "mean" kaya oa ## Footnote mode and median are not sensitive for extreme values

Question 40

# Mode - T or F value of mode can also be determined graphically.

Answer 40

T

Question 41

# Mode - T or F usually an actual value of an important part of the series.

Answer 41

T

Question 42

# Mode - T or F Always based on all observation and capable of more mathematical manipulations

Answer 42

F (for both)

Question 43

central tendencies that are affected GREATLY by sampling fluctuations

Answer 43

Median and Mode

Question 44

* Describes how data are distributed * Measures of Shap -- Symmetric or skewed

Answer 44

Frequency Distribution Shapes

Question 45

Best central tendency if the shape is skewer is ??!

Answer 45

Median

Question 46

what central tendency always PROJECT THE POINT in skewerisity

Answer 46

Mode | skewirisity = yung nag ssskewed yall know it

Question 47

Range Variance Standard deviation Coefficient of Variation

Answer 47

Measures of Variability or Dispersion

Question 48

Difference Between Largest & Smallest Observations:

Answer 48

Range

Question 49

what is the formula for RANGE

Answer 49

X(largest) - X(smallest)

Question 50

# Range - T or F * Very sensitive to extreme values * Mention the least and greatest value

Answer 50

Range

Question 51

Shows Variation About the Mean: – gaano kalayo sa mean

Answer 51

Variance | nasa question na sagot, bobo ka pag dimo alam :P jk

Question 52

if u see this card

Answer 52

go over the formula for variance

Question 53

We usually dont know the data for the POPULATION! for variance?

Answer 53

T

Question 54

Just the square root of the VARIANCE

Answer 54

Standard Deviation

Question 55

what is the basis of SD?

Answer 55

Mean | gaano kalayo sa mean; para magets check ppt ha

Question 56

is a measure of how dispersed the data is in relation to the mean?

Answer 56

Standard deviation

Question 57

A low standard deviation indicates that the values tend to be close to the mean, while a high standard deviation indicates that the values are spread out over a wider range.

Answer 57

use this card para magets mo SD | from innernet and gpt

Question 58

* Measure of Relative Variation * Always presented as a pecenteage % * Shows Variation Relative to Mean * Used to Compare 2 or More Groups with different units of measurements

Answer 58

Coefficient of Variation

Question 59

if u see this card

Answer 59

go over the formul of COEFFICIENT OF VARIATION

Question 60

Not often computed, only when comparing two or more groups with two different unit of measurement

Answer 60

Coefficient of Variation

Question 61

# Measures of Location or Position Divides the distribution into 100 equal parts

Answer 61

Percentiles

Question 62

# Measures of Location or Position Divides the distribution into 10 = parts

Answer 62

Deciles

Question 63

# Measures of Location or Position Divides the distribution into 4 = segments

Answer 63

Quartiles

Question 64

* Measure of variation * Also known as the Midspread: Spread in the middle 50%

Answer 64

Interquartile Range

Question 65

Difference between the third and the first quartiles: Q3 – Q1

Answer 65

Interquartile Range | Not affected by extreme values

Question 66

if u see this card

Answer 66

go over on how to describe qualitative data