Systematic sampling occurs when you have a list of people, then you select every 10th person on the list. No bias will occur as long as the order of the people on the list is not important.
Random sampling is picking a subject at random. Systematic sampling is using a pattern to pick subjects, I.e. picking every third person.
efficiency
Answer is Quota sampling. Its one of the method of non-probability sampling.
Sampling error leads to random error. Sampling bias leads to systematic error.
1) Simple random sampling 2) Systematic sampling 3) Stratified sampling 4) Cluster sampling 5) Probability proportional to size sampling 6) Matched random sampling 7) Quota sampling 8) Convenience sampling 9) Line-intercept sampling 10) Panel sampling
Systematic sampling
They include: Simple random sampling, Systematic sampling, Stratified sampling, Quota sampling, and Cluster sampling.
You can't conduct startified sampling if there are no difinative groups, thus systematic sampling is more efficient if your data has no groups.
definition of time sampling
Random sampling is picking a subject at random. Systematic sampling is using a pattern to pick subjects, I.e. picking every third person.
Simple Random Sample Stratified Random Sampling Cluster Sampling Systematic Sampling Convenience Sampling
efficiency
Compare the efficiency of simple random sampling with systematic random sampling for estimating the population mean and give your comments.
Disadvantages of systematic sampling: © The process of selection can interact with a hidden periodic trait within the population. If the sampling technique coincides with the periodicity of the trait, the sampling technique will no longer be random and representativeness of the sample is compromised.
Answer is Quota sampling. Its one of the method of non-probability sampling.
Sampling error leads to random error. Sampling bias leads to systematic error.
random sampling ,systematic sampling , self-selected , and there is one more i don't know