# of Days 10 0.0 Group 20 4.0 Spring/Summer OC. symmetical OD. normal OA. skewed to the left B. skewed to the right Summaries for Average Wind Speed by Season Mean Std Dev Median Fall/Winter 2.71 Spring/Summer 1.56 # of Days 1.36 1.01 H 0.0 Average Wind Speed (mph) Part B The average wind speed is usually higher in ? Part A The shape of the distribution of the average wind speed is 2.47 1.34 2.0 Part C The distribution of the average wind speed is more spread in ? IQR 1.87 1.32 4.0 Fall/Winter because the ? +8 6.0 because the 8.0 is higher. is higher.

Definition Definition Middle value of a data set. The median divides a data set into two halves, and it also called the 50th percentile. The median is much less affected by outliers and skewed data than the mean. If the number of elements in a dataset is odd, then the middlemost element of the data arranged in ascending or descending order is the median. If the number of elements in the dataset is even, the average of the two central elements of the arranged data is the median of the set. For example, if a dataset has five items—12, 13, 21, 27, 31—the median is the third item in ascending order, or 21. If a dataset has six items—12, 13, 21, 27, 31, 33—the median is the average of the third (21) and fourth (27) items. It is calculated as follows: (21 + 27) / 2 = 24.