The range of her scores is 17.
<em><u>Explanation</u></em>
Mindy's scores in five tests are: 
First, rearranging the data in numerical order, we will get ........

<u>'Range' is the difference between the highest and lowest values</u>.
In the above data set, highest value is 95 and lowest value is 78
So, the range of her scores will be: 