Answer:
Step-by-step explanation:
it's so simple dude
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:
2.75
Step-by-step explanation:
46 divided by 4 is 11r2 then convert the 2 into a decimal which is 11.02 then divide it by 4 which is 2.75 i didn't double check so its its wrong im sorry
It is equal when you round it off.
Answer:
you spend 5 hrs. first you have to substract 45 from 120 because it is a default charge. 120-45 = 75. if you divide 75 by 15 you get 5 hrs. because it 15$ per hour.
