Answer: B. 532
Step-by-step explanation:
18*18 = 324
16*18 = 288/2 = 144
16*8 = 128/2 = 64
324+144+64
=
532
Answer:
22 completed surveys
Step-by-step explanation:
In the scenario described above, the sample to be used is the information given by the 22 completed surveys. This is because, the remaining 8 initial samples give no information regarding the working condition of employees. Hence, this data points are the null points and may have to be removed from the data.
Therefore, the sample in the scenario described above are the 22 completed surveys from the initial 20 samples selected.
Do you mean this number:

?
The we have to simplify the fraction part, since the nominator is bigger than the denominator.
How many denominators fit into the nominator? 20: 4=5
5! so

is simply 5 and we can add it to the main number:
175+5=180