Answer: 2.71
Step-by-step explanation:
We know that the formula to calculate the standard error is given by :-
, where
is the standard deviation and 'n' is the sample size.
Given : Standard deviation : 
Sample size : 
Then , the standard error of the mean is given by :-

Hence, the standard error of the mean = 2.71
Answer:
b < 10
Step-by-step explanation:
-b - 2 > 8
Add 2 to both sides.
-b > 10
Divide both sides by -1. When dividing by a negative, flip the inequality sign.
b < 10.
Answer:
96 Units cubed
Step-by-step explanation:
12 x 2 x 2 = 48
4 x 6 x 2 = 48
48 + 48 = 96
Answer:
x = -1
Step-by-step explanation:

Only the solution x = -1 will work for this equation. The other solution is extraneous.
Volume=LWH
with cube, L=W=H
with this one
L=8=W=H
V=8*8*8=512 in^2
answer is 3rd option