TGPSC MPSO / ASO · Study notes

Statistics notes for TGPSC MPSO / ASO

22 notes in 7 chapters. Open a chapter, or go straight to a note.

1.1 Data, sampling, probability and presentation 5

1.1.1Statistics: meaning and scope; primary and secondary data; census and sample; schedule and questionnaireRead here
1.1.2Sampling methods: random (simple, stratified, systematic, cluster) and non-random; sampling and non-sampling errorsRead here
3.1.1Probability: classical, relative-frequency and axiomatic definitions; addition and multiplication theoremsRead here
1.1.3Classification, frequency distribution and tabulation; diagrams and graphs (bar, pie, histogram, frequency polygon, ogive)Read here
7.1.1Sampling techniques: census versus sampling, sample size, simple random, stratified (proportional and Neyman) and systematic samplingRead here

2.1 Measures of central tendency 2

2.1.1Arithmetic, weighted, geometric and harmonic means and their relationRead here
2.1.2Median, mode and partition values (quartiles, deciles, percentiles) for raw and grouped dataRead here

2.2 Dispersion, skewness and the normal distribution 2

5.1 Correlation 3

5.1.1Correlation: types, scatter diagram and Karl Pearson's coefficientRead here
5.1.2Spearman's rank correlation (with tied ranks) and probable errorRead here
5.1.3Regression: lines of regression, regression coefficients and their properties; correlation versus regressionRead here

6.1 Time series and index numbers 3

3.2 Probability and probability distributions 4

4.2 Estimation and testing of hypotheses 3

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