i believe the answer is X -----> Z
Answer:
3
Step-by-step explanation:
mark brainliest pls
Answer:
a) cluster sampling
Step-by-step explanation:
In cluster sampling method, each member of a population is assigned to one and only one group.This means clusters are formed through probability method usually a simple random sampling.The participants in the clusters are the only one to be surveyed.
In this example, simple random sampling is used to identify 12 home rooms(cluster) where a group of 20 students (participants) in each room is given the survey.
The answer is 2/15.
4x1=4
10x3=30
Simplified by dividing 2 on both side to get 2/15
Can you explain what you’re asking for