Introduction to Random Samples

It is a technique in selecting n elements from a population with size N. Samples are repeatedly drawn from a population.

• Random Variable

• Random Sampling

• Sampling Technique

• Research

The process of dividing the population into subgroups or ‘strata’ and drawing members at random from each subgroup or ‘strata’.

• Simple Random Sampling

• Stratified Random Sampling

• Systematic Random Sampling

• Cluster Random Sampling

It is a process of selecting n sample size in the population via random number or through lottery method.

• Simple Random Sampling

• Stratified Random Sampling

• Systematic Random Sampling

• Cluster Random Sampling

It is a process of selecting the kth element in the population until the desired number of subjects or respondents is attained.

• Simple Random Sampling

• Stratified Random Sampling

• Systematic Random Sampling

• Cluster Random Sampling

It is a process of selecting clusters from a population which is very large or widely spread out over a wide geographical area.

• Simple Random Sampling

• Stratified Random Sampling

• Systematic Random Sampling

• Cluster Random Sampling

It is a probability distribution wherein the sample means obtained will form a frequency distribution and the corresponding probability distribution can be constructed.

• Normal Distribution

• Discrete Probability Distribution

• Standard Normal Distribution

• Sampling Distribution

Every possible group of units of the required size has the same chance of being the selected sample as any other sample of the same size.

• Simple Random 

• Thoughtful

• Typical

• Proportional

Identify the sampling design: Mr. Rhoades puts all of his students' names in a hat and randomly selects one without looking.

• cluster

• volunteer

• systematic

• simple random

Identify the sampling design: Student government randomly samples 25 students of each of the four classes.

• stratified

• volunteer

• systematic

• simple random