The value of the missing unknown data item is of 72.
What is the mode of the data-set?
It is the value that appears the most times in the data-set.
The stem-and-leaf plot, dis considering the missing value,
the values 72 and 65 each appear 3 times.
However, the mode is 72, meaning that is should appear more times than 65, which means that the missing value is of 72.
Learn more about the mode of a data-set here:
brainly.com/question/3747554
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