What is a median and a lower quartile

The first quartile (also called the lower quartile) is the number below which lies the 25 percent of the bottom data. The second quartile (the median) divides the range in the middle and has 50 percent of the data below it. The third quartile (also called the upper quartile) has 75 percent of the data below it and the top 25 percent of the data above it.  

Hope this helps:)sorry if it doesnt

the median is   the middle number between the smallest number and the largest value of the data setfor example (1,3,3,6,7,8,9) the median is 6. and the lower quartile is the middle number between the smallest number and the median of the data set.i hoped that helped you,if so can u please put a thanks on my profile

Step-by-step explanation:

y > 1/3x

y < = -x + 4

hope this : )

i am unable to solve this problem

step-by-step explanation: