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a_sh-v [17]
3 years ago
8

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
Mathematics
1 answer:
Vilka [71]3 years ago
8 0

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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Step-by-step explanation:

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3z + 6
3z and 6 has greatest common factor, that is 3. Divide 3z and 6 by the greatest common factor (3).
3z ÷ 3 = z
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So, we could work on the expression as following.
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From the expression above, we should separate 3 from z and 2 by a parenthesis to make distributive property.
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SUMMARY
3z + 6
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