Basic Statistics
Simple statistics are used in this lab for reporting data as well as grades. Averages, medians, and ranges of data sets will be utilized in reporting and analyzing data.
Watch this video about basicA solution with a pH above 7, having a lower concentration of H⁺ ions. statistics:
Averages and Medians
Averages (means) and medians are useful statistics in measuring success against other students in class. Students can compare their individual grade to that of the average or median grade of the class. The average, or mean, is the grand total divided by the number of data points. To calculate the average grade for a class, all grades are added together. This sum is then divided by the total number of students in the class. Averages can be influenced by the range of grades in a class. Consider a class of ten students in which 9 obtain 95% or above on an exam and 1 obtains a grade below 40%. The average for this class is below 90%, a value that reflects the influence of the lowest grade.
The median is the middle value in a sample sorted into ascending order. If the sample contains an even number of values, the median is defined as the mean of the middle two. An individual grade above the median means the student is in the top half of the class. An individual grade below the median means the student is in the half of the class that makes the top half possible.
Ranges
List of terms
- basic