STATS

46問 • 1年前

問題一覧

It is a science that studies data to be able to make a decision, it involves the methods of collecting, processing, summarizing and analyzing data in order to provide answers or solution to an inquiry

statistics

Refers to facts or figures that are collated with the intention of being presented, interpreted and analyzed

data

Data that describes characteristics or qualities Usually deals with language

qualitative

Data that is quantifies or measured Usually deals with numbers

quantitative

Data that can be measure

discrete

It can assume all values and data that can be measure

continuous

Collection of all outcomes, responses, measurement, or counts that are of interest

population

A subset of population

sample

A number that descirbes population

parameter

A number that describes sample

statistics

Imvolves organizing, summarizing and analyzing data through tables, graphs and percentage

descriptive

Involves using sample to draw conclusion about population

inferential

This is done by using chance or random number

random sampling

This is done by numbering each subject of the population and then selecting the nth number

systematic sampling

This method uses intact groups called clusters

cluster sampling

If a population has a distinct groups, it is possible to divide the population into these groups and to draw SRS's from each of the group

stratified sampling

Is a specific method for analyzing qualitative research data

statistical analysis

Refers to information which is directly gathered from respondent or which is based on direct or first hand experiences

primary data

Refers to information which is taken from from published or unpublished data gathering by other individuals or agencies

secondary data

Qualitative data only Categorized by names and labels No mathematical computation needed

nominal

Qualitative or quantitative data Data can be arranged in order Differences between data entries is not meaningful

ordinal

Qualitative data Can be ordered Zero does not imply none

interval

Similar to interval level Zero implies none Differences between data entries is not meaningful

ratio

Detailed information are given in textual presentation Enumerates the highlight of the data

textual or narrative

Numerical data are presented through table Informative are lost in tabular presentation of data

tabular presentation

Uses pictures and figures Data can easily seen in graphs compared to table

graphical presentation

A special type of tabular and graphical presentation that corresponds to histogram Usually use to depict the distribution of data

frequency distribution table

More condensed form of data Data are grouped when variable streches over wide range with large number of observation Indicates the number of data different values occur in different groups

grouped data

Shows the frequency of each data value individually rather than in group

ungrouped data

Usually called averages

central tendency

It gives idea about the concentration of the values in central part of distribution

central tendency

Average of the data

mean

Located the center of distribution Most used and know measure Affected ny extreme values

mean

The middle values of the data

median

Quantitative variable that is measured in at least in the ordinal scale Used to determine the center of distribution Most affected by extreme values

median

Refers to numerical width of a class in particular distribution

class interval

most frequent and occurring value in the data set May have no/empty mode or several modes.

mode

Determines the position of a single value in relation to other value in a sample or a population data set

measure of position

Are the values that divide into 4 equal parts

quartile

Are the values that divide into 10 equal parts

decile

Are the value that divided into 100 equal parts

percentile

Is the measure of the spread of the data set

variability

The difference between the largest and the smallest measure of the data

range

Is frequently called the semi interquartile range. It is the hald distance between these two quartile points

quartile deviation

Is the mean or average of the square of the deviation of each measurement from the mean

variance

Is the square root of the variance

standard deviation

mapeh

Blues · 13問 · 2年前

mapeh