Math !
what are the mínimum, first quartile, median, third quartile, and máximum of the data
18,20,11,10,8,6,12,4

First put the data in order from least to greatest

4, 6, 8, 10, 11, 12, 18, 20
^     ^         ^          ^      ^
Min Q1    Med     Q3   Max 

Minimum -  4 
First quartile -  7
Median -  10.5
Third quartile -  15
Maximum -  20

Hope this helps! :) 

I’ll you if you answer my questions!