Which measure of variability?— Range or IQR— Best describes the spread of the dataset?
Social studies group project grades (Out of 100 points) For Mr. Chang‘s first period class.
85 88 90 90 92 92 95 96 99
1 answer
In this case, the range would best describe the spread of the dataset, as it shows the difference between the highest and lowest grades in the dataset. The range for this dataset is 14 (99-85 = 14), which gives us an idea of the variability in the grades.