Answer:
21
Step-by-step explanation:
y+9 = ?
y=12
12+9=21
Ok let me try my best, I’ll see what I can do
Answer:
X=sigma xi/no of observation
5= (?) /4
5*4=sum of all numbers
20=sum of all the observation
If you are helped by this answer pls tag me brianliest I really want it
THANK YOU.......
Answer:
B
Step-by-step explanation:
because it says between 4 and 8 and doesn't have a negative so its positive