### 眾數

${\left({a}\right)}$ The mode of a set of data is the datum with the highest frequency.

For example, the mode of the data set ${\left\lbrace{9},{9},{8},{6},{9},{13},{13},{12}\right\rbrace}$ is ${9}$.

${\left({b}\right)}$ For grouped data, the class interval with the highest frequency is the modal class.

For example, the modal class of the data below is $${14000}$ -$${15999}$

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