{ "name": "Sums of random variables", "order": 18, "challenges": [ { "id": "59a5801209a6acac5983b719", "title": "Sums of discrete random variables", "description": [ "" ], "challengeSeed": [ "" ], "tests": [ "" ] }, { "id": "59a5801209a6acac5983b385", "title": "Sums of continuous random variables", "description": [ "" ], "challengeSeed": [ "" ], "tests": [ "" ] } ] }