Does anyone know this? if you do : )

Step-by-step explanation:

I would say that you can't conclude much. It depends on the size of the sample.

It depends on how seriously people took the test.

It depends on what their reading was like when they enrolled. Only 10% might be a huge improvement from where the school started.

It depends on what phase the moon was in when they took the test.

It depends on the time of day.

option a.

step-by-step explanation:

if you look closely at the graph, we can notice that the function is not defined at two different points.

if you look at functions b and c, you will notice that both functions are not defined at just one point. the function b is not defined at x= -5/2 and function c is not defined at x=-5. both options are discarded, given that our function should not be defined at two fiferent points.

now, if you look closely at the graph you will notice that the function sketched is not defined at x=5 and x=-2.

answer: median

step-by-step explanation:

the median is the middle value when a data set is ordered from least to greatest