THIS GIRL IS ON The data list below represents the library fines, in dollars, owed by the students at a middle school.

0.00 4.25 3.75 8.50 0.00 0.00 3.00 6.00 5.50 4.50 5.00
Which statement justifies the MOST appropriate measure of center to use to describe the data?
A. The median is the most appropriate measure of center because the amounts owed in library fines vary greatly.
B. The mean is the most appropriate measure of center because it is the middle number of the amounts owed in library fines.
C. The range is the most appropriate measure of center because the amounts owed in
library fines are close in value.
D. The mode is the most appropriate measure of center because it is the least amount owed in library fines.

B

Step-by-step explanation:

introduction, methodology, results, discussion

step-by-step explanation:

an observational study is one which consists of actual observation to record data and then analyse the data.

there are a number of factors that should be analyzed before starting an observational study.

the main four factors are:

i) introduction:   this should be analysed to check whether the purpose of the study is correctly established and the data recorded are appropriate for the study

methodology:   the method of collecting the data, such as whether randomly selected, and whether sample size matches with the population to be studied, whether questions asked are easy to answer by common men, etc.

results: then results such as summary of data with comments should be studied thoroughly

discussion:   the last is the discussion, this can be either by management people or persons who are all interested , etc.