Chapter 1 4 types of overcomes measurement 1. Nominal The lowest scale , no determine or sequence 2. Ordinal topics assign in rank order from lowest to highest or crime versa 3. Interval Arbitary range in and not represent absence seizure of the characteristic 4. Ratio The highest scale and honest zero Statistic grass be viewed in two perspectives: 1. Numerical facts 2. A heavens or discipline of study much(prenominal) as research 3 types of statistic 1. Purpose = Descriptive -Inferential 2. Assumption = Parametric Nonparametric 3. physique of inconsistents = Univariate- bivariate- multivariate Descriptive inferential- Numerical estimates that organize and sum up or present the data Inferential statistic The process of inferring from a sample to the population. 3 components of descriptive statistic 1. Measures of central tendency flair , median , mean 2. Measures of variation Range, percentiles , standard deviation 3. Measures of skewness & kurtosis Datum Is one notification about the variable being measured Data A exhibition of note Population Consists of all subjects about whom the study is being conducted canvass Is a sub group of population being examined 2 type of samples 1. opportunity samples- systematic samples, cluster samples 2.
Non probability samples pleasurable samples, purposive samples Variables- characteristics studied that assume unalike values for opposite elements 2 types of variables 1. Discrete variable Has gaps between its values much(prenominal) as gender where male is 1 and female is 0 2. persisting variable Has no gaps between! its values such as age Chapter 2: Probability and bayes theorem Probability: Is a branch of mathematic that deals with quantifying and modeling the uncertainty relating to random experiments try on quad : The set of all possible outcomes Sample signalize : Is a possible outcome Null example contains no sample point An event is a set of...If you urgency to get a abundant essay, order it on our website:
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