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 ( 24+ )
Otras preguntas
Q varies inversely as the square of p, and Q = 36 when p = 7. Find Q when p = 6. A. Q = 176 B. Q = 6 C. Q = 49 D. Q = 42
Which is a solution to the equation? (x - 3)(x - 5) = 35 x= -8 x=-5 x=2 x = 10
What symptoms do you think a peptic ulcer would cause? Why do you think these symptoms would occur?
What were the immediate and secondary causes of the civil war? Please help if you can. Thanks!
The equations y = -4x - 1 and y =- 4x + 2 represent what types of lines?
Segment BD is an altitude of triangle ABC. Find the area of the triangle A. 7.5 B. 9.5 C. 10 D. 15
Factor -8x^3-2x^2-12x-3 by grouping. what is the resulting expression? A. (2x^2-3)(4x+1) B. (-2x^2-3)(-4x+1) C. (2x^2-3)(-4x + 1) D.(-2x^2-3)(4x +1)
Help me please! Follow the attachment !
Write a word phrase that can be represented by m + 25. A - the difference of 25 and m B - 25 less than a number m C - 25 more than a number m D - the quotient o
From sentencesof prendre,with theapprendreconjugated form.and comprendre
