Nitrate Levels in the Rock Creek Park Watershed, Washington DC, 1: Measures of Central Tendency part of Pedagogy in Action:Partners:Spreadsheets Across the Curriculum:Geology of National Parks:Examples
Spreadsheets Across the Curriculum module/Geology of National Parks course. Students examine the histogram of a positively skewed data set and calculate its mean, median and mode.

Nitrate Levels in the Rock Creek Park Watershed, Washington DC, 2: Variability part of Pedagogy in Action:Partners:Spreadsheets Across the Curriculum:Geology of National Parks:Examples
Spreadsheets Across the Curriculum module/Geology of National Parks course. Students calculate standard deviation and z-values to examine a possible outlier in a positively skewed data set.

Something is Askew at Mammoth Cave National Park part of Pedagogy in Action:Partners:Spreadsheets Across the Curriculum:Geology of National Parks:Examples
Spreadsheets Across the Curriculum/Geology of National Parks module. Students use the geometric mean and multiplicative standard deviation to examine the right-skewed distribution of nutrient concentrations in water-quality data at Mammoth Cave National Park.

Salmon Use of Geomorphically Restored Streams at Point Reyes National Seashore part of Pedagogy in Action:Partners:Spreadsheets Across the Curriculum:Geology of National Parks:Examples
Spreadsheets Across the Curriculum module/Geology of National Parks course. Students work with salmon-trace streambed data to study whether removal of a spawning run barrier was effective

Flood Days and Good Canoeing Days at Congaree National Park part of Pedagogy in Action:Partners:Spreadsheets Across the Curriculum:Geology of National Parks:Examples
SSAC Geology of National Parks module/Geology of National Parks course. Students calculate probabilities using USGS hydrograph data, a spreadsheet of daily stage heights, and the COUNTIF function.