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The cumulative relative frequency plot shown above displays fifty AP Statistics mock exam scores.
Which of the following conclusions can be drawn from the graph?
If three or higher is considered a qualifying score (passing score), most students did not get a qualifying score on the mock exam.
$60\%$ of the students scored a four or higher.
About $30\%$ of the students scored a three.
$100\%$ of the students scored a five.
About $70\%$ of the students scored higher than a three.