A school teacher wants to survey students at her elementary school. She surveys 20 students from each grade level. What type of

Question

KonstantinChe [14]

3 years ago

14

A school teacher wants to survey students at her elementary school. She surveys 20 students from each grade level. What type of

sampling technique she is using

Mathematics

1 answer:

Elan Coil [88] · Answer 1 · 2022-06-21T02:15:21+03:00

Answer:

Stratified Random sampling

Step-by-step explanation:

When a random observations are selected from a number of individual groups in a particular population, the type of sampling technique is called Stratified Random sampling. Stratified Random sampling begins with the partitioning or splitting or a population into subgroups. A number of random selection are then made from each of the subgroups to form a collection of larger samples. This is different from the simple random sampling technique which makes random selection directly from a larger sample or population without prior partitioning of the population. The different grades of students represents the individual stratum from which random selections are made.