In this activity, you will be calculating the mean, median, mode and standard deviation of dissolved oxygen data for Buffalo Creek near Evington, VA, taken in August, 1997, during a descriptive field study conducted by CVGS students. Dissolved oxygen is an important parameter in determining the health of a stream ecosystem since it reflects the amount of oxygen available to aquatic life in the stream. Levels below 4.0 mg/l are dangerous for aquatic life. Using
the data set in Excel, calculate the standard deviation, range, mean, median, and mode for the entire data set. 1. Is there much difference
between the mean and the median? Copyright © 2011 Central Virginia Governor's School for Science and Technology Lynchburg, VA |