Answer:
The value is 
Step-by-step explanation:
From the question we are told that
The sample size is n = 20
The sample mean is 
The standard deviation is 
Generally the standard error of the mean is mathematically represented as

=> 
=> 
Answer:
120 On edge i got it right
Step-by-step explanation:
The square root of 25/64=5/8
This to numbers are equal
Answer:
its B
Step-by-step explanation: