Population
What is a population in statistics?
The entire group of individuals/items/data under study.
What is sampling?
Selecting a subset from a population to study.
Every member has equal chance of selection. Which sampling?
Simple Random Sampling.
Selecting people who are easiest to reach is?
onvenience Sampling.
What symbol represents population size?
N
What symbol represents sample size?
n
electing every kth member is called?
Systematic Sampling.
Selecting participants based on expert judgment is?
Purposive/Judgmental Sampling.
Give one example of a population.
All students in a university / households in a city.
Sampling helps researchers estimate characteristics of what?
Population.
Dividing population into groups and selecting from each group is?
Stratified Sampling.
Selecting fixed numbers from groups is?
Quota Sampling.
Why is studying the entire population difficult?
It may be costly, time-consuming, or impossible.
Name two main types of sampling.
robability and Non-probability sampling.
Selecting complete groups or clusters is?
Cluster Sampling.
Chain referral sampling is called?
Snowball Sampling.
What is a sample?
A subset or portion of the population.
Why is sampling useful?
It saves time and cost.
Probability sampling provides what type of selection?
Random and fair selection.
In non-probability sampling, does everyone have equal chance?
No