Statistics and Probability Summative # 3

Question 1

Non-probability sampling refers to selecting a sample for specific purpose with a predetermined basis of selection.

Accepted Answer

True

Question 2

The sample selection is purely based on the judgment of the researcher.

Accepted Answer

Purposive

Question 3

The researcher includes sample in which he thinks is the most typical with regards to the characteristics.

Accepted Answer

Purposive

Question 4

A sampling technique by which every member has an equal chance to be chosen as sample through draw lots.

Accepted Answer

Simple Random Sampling

Question 5

In non-probability sampling there is no assurance that each item has a chance of being included as a sample.

Accepted Answer

True

Question 6

A sampling technique by which the sample is taken from different levels.

Accepted Answer

Cluster Sampling

Question 7

A finite population is a population that has a fixed number of elements or observations

Accepted Answer

True

Question 8

A food company conducting a taste test for a new product may offer to customers who happen to be in the store.

Accepted Answer

Convenience

Question 9

Selection of additional respondents is based on referrals from the initial respondents.

Accepted Answer

Snowball

Question 10

A sampling technique that is used when the population can be classified into groups based on some characteristics.

Accepted Answer

Stratified Sampling

Question 11

Random sampling is a sampling technique in which each sample has an equal probability of being chosen.

Accepted Answer

True

Question 12

It does not ensure representativeness of the population.

Accepted Answer

Quota

Question 13

Sampling is measuring a small portion of something and then making a general statement about the whole thing.

Accepted Answer

True

Question 14

A sampling technique by which every member of the population is selected with a random start.

Accepted Answer

Systematic Sampling

Question 15

It is also known as unsystematic, accidental, or opportunistic sampling.

Accepted Answer

Convenience

Questions 15