Answer:
Cluster Sampling
Step-by-step explanation:
I cant be 100% sure as i am not in statistics, but by definition cluster sampling is a probability sampling technique where researchers divide the population into multiple groups (clusters) for research (in this case its the phone book). Researchers then select random groups (three random pages) with a simple random or systematic random sampling technique for data collection and data analysis(interviews).
so that appears to be what is happening in this scenario.
Answer:
-3
Step-by-step explanation:
4 (h+1.5)=-6
4h+6=-6
4h=-12
h=-3
Answer:
12
Step-by-step explanation:
2(5+1) =
2(6) =
12
Answer:
9 : 3
Step-by-step explanation:
To get from 21 to 3 we divided 21 by 7, therefore we have to do the same to the other side and so we get...
63 / 7 = 9
Therefore 63 : 21 = 9 : 3
Answer:
c - 8 is greater than or equal to -15
Step-by-step explanation:
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