The sixth grade basketball won 9 out of 15 games. what is the ratio of the number of games lost to the number of games won

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()1. how do you find range? 2.the following set of data is to be organized into a histogram. if there are to be five intervals on the graph, what should the length of each interval be? 30, 34, 23, 21, 27, 25, 29, 29, 25, 23, 32, 31

Pls! does anybody know a shortcut for answering these types of questions in the future?