You will then need to import the sample piching.csv into your mongo database.

here is the csv file: https://github.com/csula/cs1222-fall-2017/blob/master/samples/pitching.csv

Here are the questions:

7.Find out the players with max era and min era per year

8.Find out the average, maximun and minimum h and er per team_id

9.Find out the average, maximun and minimum h and er per team_id and year

10.Order the team_id by the number of players in the team and group by year