Independent and Dependent Events  

出　　处：《中学生数学》2023年第14期F0003-F0003,共1页

摘　　要：When am I ever going to use this?TRACK AND FIELDThe 100-meter dash features 20 runners competing in a preliminary round of 4 heats.The winner of each heat advances to the final race.Before the race,each runner chooses a number from jar 1 to determine the heat in which he runs and a number from jar 2 to determine one of five lanes he occupies.Omar is thefirst runner to choose from the jars.

关 键 词：INDEPENDENT RUNNER CHOOSE 

分 类 号：R68[医药卫生—骨科学]