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.
Answer:
D
Step-by-step explanation:
Alright, so we know that they can unload 25 trucks in 5 hours.
If we do 25/5 We find out that they can unload <u>5 trucks per hour</u>
Unfortunately, that is not one of the answers, so we will have to do some investigating to find something that is <u>equivalent</u>!
After evaluating the available answers, you can find that answer D lines up with our first assumption!
Every 1/5th of an hour the Fast-Pack people can unload a truck!
We can calculate this by writing:
1/5*25=<u>5</u>
<u></u>
Please let me know if you have any confusion! :)
The angle between the legs labeled 
and 
is complementary to the angle with measure 31 degrees, so that angle has measure 90 - 31 = 59 degrees. Then
Answer:
$3, 661.60
Step-by-step explanation:
1703.44 + 1958.16
Answer:
77.8
Step-by-step explanation:
don't ask
