Answer:
The standard error of mean = 10
Step-by-step explanation:
Given a simple sample of 144 observations was taken from a large population.
The size of large sample 'n' = 144
Given sample mean and the standard deviation were determined to be 1234 and 120 respectively.
Given standard deviation of sample (S) = 120
The standard error of mean is determined by
<u>Final answer</u>:-
The standard error of mean = 10
Answer:
2√5
----------
25
Step-by-step explanation:
17)
Multiply top and bottom by √5
So
√4 * √5 2√5
-------------- = --------------
5 √5 √5 25
Just multiply 5 and 6 by the same number.
Example:
(5 by 2) by (6 by 2) = 10 by 12,
so twelve can be an enlargement of a rectangle that is 5 by 6.
Commutative property. In the commutative property you can change the order of the numbers and still get the same answer.
X+3 = 3^2
X+3 = 9
X = 9 - 3
X = 6