Answer: 12
Explain: Hope this helps!
Here is dependence between scores and x-values:
where is the mean, is standard deviation and i changes from 1 to 2.
1. When i=1, then
2. When i=2, then
Now solve the system of equations:
Subtract first equation from the second:
Then
Answer: the mean is 62, the standard deviation is 20.
Answer:
u
Step-by-step explanation:
Answer:
3h-9/2
Step-by-step explanation:
3/4(4h-6)=3h-18/4
simplify
3h-9/2
Answer:
I think this is the answer
Area 77cm2