Morgan State University Variance and The Standard Deviation Problems Note: for part C, practice the box-plot methosd and use it.
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Sample of ammonia levels near an exit ramp:
14 8 14 12 16
a) Find the range, mean, median and mode and IQR
b) Find the variance and the standard deviation.
c) Can you detect any outliers? Justify your answer.
Note:
There is a free access to the book preview that you can consult to study until you get your textbook:
)
Go to section 2.7 about detecting the outliers and review the box-plot method page 55-56-57-58……..
Use the box plot for your assignment hw# 2; you can practice using the z-score as well.
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