Residents in a city are charged for water usage every three months the water bill is computed from a common fee along with the a
mount of water the customers use the last water bills 440 neighborhood residents are displayed in the histogram below.
A) $150-$175 B)$175-$200 C) $200-$225 D) $225-$250
A) $150-$175 B)$175-$200 C) $200-$225 D) $225-$250
1 answer:
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Answer:
The relative variability is almost equal in both samples a slight greater variability can be noticed in the first sample.
Step-by-step explanation:
The coefficient of variation of a sample is defined as the ratio between the mean standard deviation and the sample mean. And it represents the percentage relation of the variation of the data with respect to the average.
In the case of the first sample you have:
In the case of the second sample you have:
The relative variability is almost equal in both samples a slight greater variability can be noticed in the first sample.