A simple random sample of n measurements from a population is a subset of the population selected in a manner such that which of the following is/are true? (Select all that apply.)

a. sample of size n from the population has an equal chance of being selected.
b. Every member of the population has an equal chance of being included in the sample.
c. The simplest method of selection is used to create a representative sample.
d. Each subset of the population has an equal chance of being included in the sample.
e. Every sample of size n from the population has a proportionally weighted chance of being selected.

It is a type of probabilistic sampling.
It is an unbiased representation of population.
The probability of selection is equal for every observation.
A sample is taken in such a way that each member has an equal probability of being selected.
A simple random sample is a subset of a statistical population in which each member of the subset has an equal probability of being chosen.
Thus,the correct interpretation is given by,

a) sample of size n from the population has an equal chance of being selected.

b) Every member of the population has an equal chance of being included in the sample.

c) The simplest method of selection is used to create a representative sample.

The statement is false.

There is no pattern or technique used for selection. The selection is purely random.

d) Each subset of the population has an equal chance of being included in the sample.

The statement is false.

Each object of the population has an equal chance of being included in the sample. and not each subset.

e) Every sample of size n from the population has a proportionally weighted chance of being selected.

The given statement is false.

fichoh fichoh · Answer 2 · 2021-10-26T22:51:53+02:00

The simple random sampling describes a simple sampling technique where a portion of the population can be selected while giving every member of the population an equal chance of being selected. Hence, the true statements from the option are :

sample of size n from the population has an equal chance of being selected.

Every member of the population has an equal chance of being included in the sample

The simplest method of selection is used to create a representative sample

The simple random sampling techniques is easy, starignforward and effective, it is arguably the simplest method of selecting a truly representative sample.

Every single member of the population is given an equal chance of being selected in this sampling procedure, which also means that a sample of size also has an equal chance of being selected.

Therefore, only statements A. B and C are true of simple random sampling technique.

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