well, rational = fractional, namely something you can write as a fraction, well, anything between -1 and -2 is just less than -1 so

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:
the second one
Step-by-step explanation:
Answer:
266 miles
Step-by-step explanation:
You need to divide 70 by 2.5 equals 28. Than you need to times that by 9.5.