# Compute the weighted average of chlorine compound

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Compute the weighted average of chlorine compound concentration in milligrams per liter (mg/l) for this ecological system.
b) Suppose the EPA has established an average compound concentration target of no more than 58 mg/l. Comment on whether this wetlands system meets the target standard for chlorine compound concentration.
6. Estimate the mean and median of each distribution.
7. Use the histograms to answer the questions. Questions: a) Construct the frequency table for each class. Class BoundariesFrequency for Class 1(number of students)Frequency for Class 2(number of students)29.5-39.51139.5-49.53149.5-59-54259.5-69.56369.5-79.55479.5-89.53789-5-99.526b) Determine the total number of students in each class.
c) Based on the given histograms, which class do you think has the highest mean score?
d) Which class had the highest median score?
e) Compute the mean score in each class rounded to one decimal place. (Hint: Use the process for computing mean for grouped data.) No need of showing your work on this paper (you’re expected to workit on your scratch paper).
f) Compute the sample standard deviation for each class rounded to 1 decimal place. Use the process forcomputing the standard deviation for grouped data. No need of showing your work on this paper (you’reexpected to work it on your scratch paper).