At a local community college, five statistics classes are randomly selected and all of the students from each class are intervie wed. What sampling technique is used?
A. convenience
B. systematic
C. random
D. cluster
E. stratified
1 answer:
Answer:
D. cluster
Step-by-step explanation:
Convenience: Based on availability.
Systematic: The first element is sorted randomly, then the others follow a pattern.
Random : Each member of a sample has the same probability of being sorted.
Cluster: Each group is cluster, and when a cluster is sorted, every member of the group is sample. This is the correct answer .
Stratified: Population is divided into groups and then members from these groups are sorted.
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I used the points (1985, .21) and (1990, .30).
If 3% out of 100% are defective it would be 3 out of every 100, and 3 multiplied by 5 is 15. Then you multiply 100 by 5 and its 500 so out of 500 parts 15 would be defective
Im guessing that it is 5 but then again dont trust me XD