Answer:
IRA
Step-by-step explanation:
I looked it up
Answer: $5656.85
Step-by-step explanation:
The standard error of the mean measures the dispersion of sample means about the population mean .
It is also known as the standard deviation of its sampling distribution.
Formula :
, where
= population standard deviation.
n= sample size.
As per given , we have
sample size : n= 50
Then, the standard error of the mean will be :-

Hence, the standard error of the mean= $5656.85
Answer:
x=3 x=4
Step-by-step explanation:
add 2 to both sides
x^2-7x+12=0
(x-3)(x-4)=0
x=3 x=4
i just factored it out, there are more ways of doing it probably