19. Please answer. Rainbow Irout, Inc. feeds Fingerling trout in special ponds and markets them when they reach a certain weight. A sample of 9 trout was isolated from a pond and fed a special food mixture called “Grow Em Fast”. At the end of the experimental period, the weights of the trout were (in grams): 124, 125, 123, 120, 124, 127, 125, 126 and 121. has. What is the mode? Justify your answer well. b. What is the arithmetic mean? c. What is the median? Justify your answer well. d. Based on the values ​​of the arithmetic mean, median, and mode, what is the most likely shape of the distribution? Justify your answer well. e. Calculate the sample standard deviation.    You must show the details of your calculations. Round to 2 decimal places where necessary.

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.