Question

hello can you tell me what I need to do to get the answer please

Answer 1

We'll first sort the data in ascending order:

$30,\text{ 88, 90, 96}$

The median is the number in the "middle" of a sorted list of numbers. Since in ths case we have two "middle" numbers because we have four data point, we just need to average them. That is:

$\frac{88+90}{2}=89$

And so, 89% is the median of the quiz grades given.