Answer: 2.40
Step-by-step explanation:
Given: The prices of 4 cars with similar characteristics that sold at a recent auction (in thousands of dollars): 6.6, 5, 10.7, 7.3.
Let x: 6.6, 5, 10.7, 7.3.
n= 4
Mean :
Now , standard deviation =
Hence, the standard deviation of the sample of selling prices = 2.40
First, we must subtract
57
-
26
______
31
Second, we isolate the variable!
X + 0 = 31 - 5
X+0 = 26
X=26
Finally,Plug it in
26 + 5 = 57 - 26
26 + 5 = 31
31 = 31
Check
Hope I helped!
Good Luck!
-7x+9y=-18
-2x-9y=18
-9x (y’s cancel)=0
X=0
Answer:
-8
Step-by-step explanation:
47-55=-8