sigma is unknown, so it must be estimated by using sigma approximately equals (1/4) * (range)
99921
unknown standard deviation = range/4
105531
Determining if a variable is within range?
101759
How to write uncertainties with the \pm symbol "10 ± 1 K" by using siunitx?
117417
Prove that the standard deviation is less than half the range
6793
A linearly independent set about approximate units
144568
How closely can we estimate $\sum_{i=0}^n \sqrt{i}$
109015
How to show that 0.5Y is an unbiased estimator of alpha?
17211
Is it wrong to tell children that $1/0 =$ NaN is incorrect, and should be $∞$?
36606
Why the standard deviation of the sample mean is calculated as $\frac{\sigma}{\sqrt{n}}$?
121661
Evaluating the sum $\Sigma \, \frac{1}{k(k+p)}$
13186
Approximating cos(43) with error less than $8/60000$
84018
Why is there not a simpler way to calculate the standard deviation?
149201
What does $\lim_{x\to4} \frac{1}{x-4}$ equal?
39710
How to do estimation, when only summary statistics are available?
57850
Bounding an Error on the inverse.
92862
Degrees of freedom for standard deviation of sample
6238
How to find delta, for a given epsilon?