TOPIC 1. INTRODUCTION TO STATISTICAL ANALYSIS Flashcards
Science deals with the collection, presentation, analysis, and interpretation of scientific data
Statistics
It is the foundation of statistics
Data
Can be transformed into useful facts and information that a decision maker can use
Data
It is the fundamental characteristic of data
Variability
A successful observation of a system that do not produce the same result
Variability
What are the two classification of statistics
Descriptive and inferential
A classification of statistics through collecting,describing, and analyzing a set of data without drawing conclusion
Descriptive statistics
A classification of statistic that predicts about the entire dataset
Inferential statistics
A classification of statistics that is concerned with the analysis of a subset of data leading to predictions about the entire data set
Inferential statistics
What are the four scales of measurements
Nominal, ordinal, interval, and ratio
Scale of measurement that labels or categories
Nominal
Scale of measurement through ranking or order
Ordinal
Scale of measurement that has no true zero
Interval
Scale of measurement that has a true zero
Ratio
What are the four types of data
Primary data, secondary data, discrete data, and continuous data
It is a type of data collected fresh or for the first time thus happened to be original
Primary data
It is a type of data collected by someone else and have been passed through statistical process
Secondary data
It is a type of data which whole numbers are often counted
Discrete data
It is a type of data measured and can be presented as decimal
Continuous data
What are the three measures of central location
Mean, median, and mode
What are the three measures of variability
Range, variance, standard deviation
Range can be determined by
Highest minus lowest
It is the dispersion of data from mean
Variance
A specified sample size has the same chance of being selected as any other sample of the same size
Random sampling
What are the four types of random sampling
Simple random sampling, systematic random sampling, stratified random sampling, and cluster random sampling
A type of random sampling which is determined by assigning a number and randomly select
Systematic random sampling
It is a type of random sampling which is determined through grouping and selecting randomly
Stratified random sampling
Three types of statistical studies
Observational studies, retrospective studies, and designed experiment
It is type of statistical studies which involve observing and analyzing phenomena as they occur naturally without intervening manipulating variables
Observational studies
It is a statistical status that studies past events or records to identify patterns, relationship or potential causes and effects
Retrospective studies
It is a type of statistical studies that intentionally manipulating variables under controlled conditions to observe their effects
Designed experiment
