Which of the following does not characterize stratified random sampling? a. nonrandom sampling is used b. the population is divided into strata that are distinct c. the population is divided into strata that are mutually exclusive and exhaustive d. the population is divided into strata that are homogenous

Using sampling concepts, it is found that the statement which does not characterize stratified random sampling is:

A. Nonrandom sampling is used

In stratified random sampling, the population is divided into groups called strata, and then a number of members of each group is sampled, by random sampling.

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A. Nonrandom sampling is used

Step-by-step explanation:

Nonrandom sampling is used does not characterize stratified random sampling. This means that, the people that provide the samples prepare for what they are going to give out and how it is going to contribute to their company.

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step-by-step explanation:

let f (x ) is a function and c be a positive real number,   the graph of the function g (x ) = f (cx ) is represented as follows.

when, c > 1,   the function compresses it in the x - direction.

when, 0 < c < 1, the function stretches it.

the function is g ( x ) = (9x )2.

the heighest power of x in g ( x ) = (9x )2 is 2, so the parent function is square function.

the equation of parent function is f ( x ) = x 2 .

the function is g ( x ) = (9x )2 and the parent function is f ( x ) = x 2 .

so, the functions f and g have the following relationship.

g ( x ) = f ( 9x ).

compare the function g ( x ) = f ( 9x ) with g (x ) = f (cx ).

c = 9 ( > 1 ).

so, the function g (x ) = (9x )2 compresses it in the x - direction.

step-by-step explanation: