Chapter 1 4 types of graduated tables measurement 1. Nominal The lowest scale , no determine or sequence 2. Ordinal topics depute in rank order from lowest to highest or guilt versa 3. Interval Arbitary range in and not represent absence of the characteristic 4. Ratio The highest scale and honest zero Statistic flock be viewed in two perspectives: 1. Numerical facts 2. A subject area or discipline of study much(prenominal) as research 3 types of statistic 1. Purpose = Descriptive -Inferential 2. Assumption = Parametric Nonparametric 3. sum up of variants = 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 climate , median , mean 2. Measures of variation Range, percentiles , standard deviation 3. Measures of lopsidedness & kurtosis Datum Is one notification about the variable being measured Data A exhibition of mirror image Population Consists of all subjects about whom the study is being conducted evidence Is a sub group of population being examined 2 type of samples 1. chance samples- systematic samples, cluster samples 2.
Non probability samples engaging samples, purposive samples Variables- characteristics studied that assume unalike values for several(predicate) elements 2 types of variables 1. Discrete variable Has gaps between its values such as gender where male is 1 and f emale 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 ideal quad : The set of all possible outcomes Sample set : Is a possible outcome Null example contains no sample point An event is a set of...If you requisite to get a abundant essay, order it on our website:
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