Answer:
The standard error of the mean = 2
Step-by-step explanation:
Given that:
The standard deviation σ = 14
The sample size n = 49
The sample mean
= 56
The formula for calculating the standard error can be expressed as:



S.E = 2
Therefore, the standard error of the mean = 2
Answer:-5
Step-by-step explanation:
-16k+56 check photo for steps and please mark as brainliest if i helped! thanks c:
Answer:
im not so sure which one it is
Step-by-step explanation:
3z+2z and 5z 9.1+4.5a-2.5a and 11.1a and y-6(3) and y-18