PO217 Lecture Notes - Lecture 14: Pie Chart, Frequency Distribution, Multivariate Statistics
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Descriptive statistics: are used to describe characteristics of a population or a sample. Describe the number of men and women in canada. Describe the variable: ce tendency and dispersion of the variable. Inferential statistics are used to generalize from a sample to the population from which th drawn. We can infer from a sample we can infer from a sample of income level and in entire population (generalization). Take that info from the sample and estimate how it loo whole population. If we are to do that, we have to take the value of the sample and try to will come close but not exact use confidence interval it"ll fit plus of minus in this ran. Should be 95% its our standard. (possible error. Univariate statistics: describe (descriptive) or make inferences about (inferential) the valu variable. One variable - each variable you provide measure of central tendency and the meau dispersion.
