Local math checker

Mean Median Mode Checker

Check the mean, median, and mode for a list of numbers.

Example: data 2, 3, 3, 7, 10 has mean 5, median 3, mode 3

How this checker works

Mean, median, and mode measure different things, so checking all three at once can reveal exactly where a statistics mistake happened. Enter the data set as numbers separated by commas or spaces, then enter the student’s mean, median, and mode. The checker calculates the average, sorts the list to find the middle, and counts repeated values to identify the mode.

If every value appears only once, the correct mode response is no mode. If more than one value ties for most frequent, list each mode separated by commas. The result shows the expected mean, median, and mode together with a short explanation for each calculation. This is helpful for data and graphing units where students often mix up the three vocabulary words. For full worksheets with tables, dot plots, or written interpretation, the photo checker can grade the whole response.

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