Step-by-step explanation: First you add all of the numbers together getting a total of 48. Next to find the mean you divide them by the total number of "dots". Lastly, you get the answer of 6 which is your mean.
Ricky hit 1,203. because Pedro hit 279 so subtract it from 2685 and then divide by 2 and then you get Ricky's and you also get pedros if you add 1203 and 279 which gives you 1482.