(6) A small population {a,b,c,d,e,f,g,h,i} consists of three
strata, namely {a,b,c}, {d,e,f} and {g,h,i}. Provide a...
(6) A small population {a,b,c,d,e,f,g,h,i} consists of three
strata, namely {a,b,c}, {d,e,f} and {g,h,i}. Provide a method that
will draw a stratified random sample of size 3.
The following ``answers'' have been proposed.
(a) Take your sample to be a,d,g, i.e., the first element of each
stratum.
(b) Take a three sided fair die (such as a standard die with two
faces labeled one, another two faces labeled two, and the last two
faces labeled three). Roll this die and...
9. Let S = {a,b,c,d,e,f,g,h,i,j}.
a. is {{a}, {b, c}, {e, g}, {h, i, j}} a...
9. Let S = {a,b,c,d,e,f,g,h,i,j}.
a. is {{a}, {b, c}, {e, g}, {h, i, j}} a partition of S?
Explain.
b. is {{a, b}, {c, d}, {e, f}, {g, h}, {h, i, j}} a partition
of S? Explain. c. is {{a, b}, {c, d}, {e, f}, {g, h}, {i, j}} a
partition of S? Explain.
Product A is assembled from 6 components. The
components are B, C, D, E, F, G....
Product A is assembled from 6 components. The
components are B, C, D, E, F, G. Components B, D, and F are
purchased from a supplier, complete and ready to assemble.
Component C is assembled from parts H, I, and J. Component E is
assembled from parts K and L. Component G is made in the plant from
raw materials. Part H is made from parts M and N. Part L is made
from parts P, Q, and R. Part...
Let Let A = {a, e, g} and B = {c, d, e, f, g}. Let...
Let Let A = {a, e, g} and B = {c, d, e, f, g}. Let f : A → B and
g : B → A be defined as follows: f = {(a, c), (e, e), (g, d)} g =
{(c, a), (d, e), (e, e), (f, a), (g, g)}
(a) Consider the composed function g ◦ f.
(i) What is the domain of g ◦ f? What is its codomain?
(ii) Find the function g ◦ f. (Find...
let
A = { a, b, c, d , e, f, g} B = { d,...
let
A = { a, b, c, d , e, f, g} B = { d, e , f , g}
and C ={ a, b, c, d}
find :
(B n C)’
B’
B n C
(B U C) ‘
Given that, for some a, b, c, d, e, f, g, h, i ∈ R, [a...
Given that, for some a, b, c, d, e, f, g, h, i ∈ R, [a b c d e f
g h i ] = 5, evaluate the following determinants:
(c) [ka ld mg
kb le mh
kc lf mi] Here, k, l, and m are non-negative constants.
Find the number of permutations of a, b, c, d, e, f, g and h
containing...
Find the number of permutations of a, b, c, d, e, f, g and h
containing no piece ab, or cd, or acb.