The mean of the data is given

The variance of the data is given

180 is the lcm for 20 and 18
Answer:
5
Step-by-step explanation:
4 x 2 - 3 =
8 - 3 =
5
Answer:1.625
Step-by-step explanation:you just divide 65 and 40
Answer:
-1
Step-by-step explanation:
-4(y-2)=12
-4y+8=12
-4y=4
y= -1