Page 70 - FINAL CFA I SLIDES JUNE 2019 DAY 3
P. 70
Session Unit 3:
LOS 11.a: Define simple random sampling
(SRS) and a sampling distribution, p. 250 11. Sampling and Estimation, p250
SRS – each item has equal likelihood of selection; Often distinguished from:
Systematic sampling, every nth item is selected! Also often distinguished from:
Stratified random sampling pools sample results drawn from each category in a classification system. The size of the samples is
based on the size of the stratum relative to the population.
LOS 11.b: Explain sampling error.
Sampling error -difference between a sample statistic (the mean, variance, or SD) and its corresponding (true)
population parameter, i.e.= sample mean – population mean = x – µ
LOS 11.c: Distinguish between simple random and stratified random sampling, p251
Can you Now?
