id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
stem-5163	Muxammadiyeva Dilshoda	Importance of Methods in Teaching	2024	4	.htm	application/pdf	1893	108	54	There are several types of sample research, depending on how the selection of set elements in the sample is carried out: a) simple random selection; b) mechanical selection; c) typical selection; d) sequential selection. Considering the problem of data selection in sampling, we introduce the concepts of repeated and non-repeated samples.	cache/stem-5163.htm	txt/stem-5163.txt