Wish fb ee snsjsjwbw e Bush’s use Brisbane Meeks
Answer:
The standard deviation of the sample mean is
Step-by-step explanation:
From the question we are told that
The mean is 
The standard deviation is 
The sample size is 
Generally the standard deviation of the sample mean is mathematically represented as

substituting values


325 + 225 + 79 = 629
629 - 438 = $191
= A. $191
Answer:
It's the second one.
Step-by-step explanation: