Answer:
Stratified sampling
Step-by-step explanation:
The is a type of sampling in which the population of interest is divided into subpopulations and then each subpopulation is randomly sampled.
In this case study, instead of just doing a random sampling of all students, the research divided the population of all students into subpopulations which includes freshmen, sophomores, juniors and seniors and then she makes a random sampling of each of these subpopulations.
9514 1404 393
Answer:
no solution
Step-by-step explanation:
You attempt to solve this the same way you would an equation.
4(x +1) ≤ 4x +3 . . . . . . given
4x +4 ≤ 4x +3 . . . . . . . eliminate parentheses
4 ≤ 3 . . . . . . . . . . . . . . subtract 4x from both sides
This is a <em>false</em> statement. There are no values of x that will make it true. So, there is NO SOLUTION.
__
Whenever you run across a false statement in the solution process, you know there is No Solution.
The answer is b because they are both the same length
Step-by-step explanation:
the answer is in the above image
pls give me BRAINLIEST