Answer:
Systematic sampling
Step-by-step explanation:
An EPA contractor needing to test the concentration of a substance in ten samples out seventy samples provided form a single source at regular time intervals.
For the contractor to effectively carry out the testing he has to employ a Non-probability system of sampling which is called Systematic sampling, because in systematic sampling we can assume the population size (x ) which in this case is 70 and the sample size( n ) to be 10
He will have to select ; ( x / n )^th of the sampling frame for best results
Answer is -5.
Explanation- Since t equals 0. You put 0 in place of every t.
0(2)- 2(0)- 5 =
0-0-5= -5
Answer:
$1,140, or $1,144.9
Step-by-step explanation:
70 is 7% of 1,000
70 x 2 = 140
140 + 1,000 = 1,140
Or, if you mean 7% compounded annually then....
1,070 after first year.
7% of 1,070 = 74.9
74.9 + 1,070 = 1,144.9
The answer is k-20
decreased means to take away/subtract, “k” is being subtracted by 20, therefore k-20
Hope this helps! have a wonderful day!
<span>2 – (–8) (–3) = -22
Choices given are incorrect.</span>
