Correct! The average is 9.2 and the median is 9.
Sorry,the average is 9.2 and the median is 9. To calculate the average we add all the numbers together: 4 + 10 + 8 + 9 + 15 = 46 and then divide by the number of items we have (five): 46/5 = 9.2. To calculate the median, we arrange the numbers from lowest to highest and find the middle-most value, in this case, 9.