461.176470588
Explanation:
2×56=112
112×420=47040
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3×34=102
---------------------------------
47040÷102=461.176470588
Answer:
1 
Step-by-step explanation:
Answer:
x=7
Step-by-step explanation:
-2 = -x+5
x=7
Answer:
A. 0.020
Step-by-step explanation:
we calculate the standard error of the sample mean with the formula,
,
with E= standard error of the sample mean
s= standard deviation
n= sample
So,
s= 0.2
n= 100
