2  Probability and Distributions

2.1 Probability in Sampling

2.2 Probability vs. Non-Probability Sampling

2.3 Types of sampling distributions

2.3.1 Sampling distribution of mean

2.3.2 Sampling distribution of proportion

2.3.3 T-distribution

2.4 Central Limit Theorem

2.5 Law of Large Numbers

2.6 Confidence Intervals

2.7 Hypothesis Testing in Surveys