mizzcutie45
mizzcutie45
11-10-2016
Mathematics
contestada
explain stratified sampling?
Respuesta :
icecreamsoda
icecreamsoda
11-10-2016
Stratified sampling is when a researcher divides the population into separate groups, known as strata. then a probability sample (simple random sample) is drawn from each group.
Answer Link
VER TODAS LAS RESPUESTAS ( 79+ )
Otras preguntas
A number is divided by 4, and then the quotient is added to 17. The result is 25. Find the number.
Briefly describe the biogenic amine theory of depressin. How does current drug therapy to treat depression correlate with the biogenic amine theory?
A meteorologist wants to create a visual aid different gases in earths atmosphere which type of chart or graph would best convey the data
The Sharpe Company reports the following information for 2015: Sales $76,500 Direct materials used 7,300 Depreciation on factory equipment 4,700 Indire
Calculate the mass of a 0.9 m^3 block of a material having a density of 12500 kg/m^3.
Use the graph of f(x) to evaluate the following: The average rate of change of f from x=0 to x=4 is_____. Give your answer as an integer or reduced fraction
A stainlesss steel cylinder diameter 60 mm is cooled in a air with h = 10 W/m^2-K. If the thermal conductivity is 20 W/m-K, the Biot number for this sphere is a
An ____ is an object that produces each element of a container, such as a linked list, one element at a time. A. initiator B. iterator C. interpreter
As a radioactive material undergoes nuclear disintegration, a) b) c) d) e) Its atomic number always remains the same Its mass number never increases; Its mass n
A hollow steel shaft with and outside diameter of (do)-420 mm and an inside diameter of (di) 350 mm is subjected to a torque of 300 KNm, as shown. The modulus o
