The difference in the widths, in meters, of the human hair and the piece of sand is 
m.
It is given in the question that:-
Width of a human hair = 
m
Width of a piece of sand = 
m
We have to find the difference in the widths, in meters, of the human hair and the piece of sand.
We know that,
Difference between the widths = Width of a piece of sand - Width of a human hair
Hence, we can write,
Difference between the widths = m - m
We can write,
Hence,
Difference between the widths =
m
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The formula for the standard error is this:
σM = σ / √N
where
σM is the standard error
σ is the standard deviation
N is the number of samples
So,
σM = 0.45 / √50
σM = 0.0636 or 6.36%
The standard error is 0.0636
Answer:
Step-by-step explanation:
10:6
15:9
Ratios sort of work like fractions.
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Answer: 3 percent decrease. = 0% Increase or a 5 % decrease.
Step-by-step explanation: Sorry, I don't have an explanation!
