Respuesta :

Hagrid
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:

i got the same answer as the other guy, but the answer choices are:

A.  7.04%  

B. 14.06%

C.  21.09%  

D.  0.07%


Step-by-step explanation: