Answer:
Median = 9
Step-by-step explanation:
Arranging it in ascending order:
=> 3, 4, 5, 7, 9, 10, 11, 12, 20
Median is the middlemost no. so
=> Median = 9
9
List them in order first.
3, 4, 5, 7, 9, 10, 11, 12, 20
Now find the middle number:
4, 5, 7, 9, 10, 11, 12
5, 7, 9, 10, 11
7, 9, 10,
R n S = {20}
n in sets means same elements found in the sets which are being compared
13
Just replace x with 10, so F(10) = 10/2 + 8. Which is 5 + 8.
30 I think but I'm probably wrong