Each of these questions is substantially the same as the others. The answer is, "it depends" on what you want a random sample of. If you want random people in the country, you will not get that from these protocols.

If you want random people that meet certain criteria (have phones, shop in eyeglasses stores, use specific venues), then these protocols will deliver.

3 0

3 years ago

How can you use a line graph to display and analyze real- world data?

AnnyKZ [126]

Answer:

its to show data like rainfall how many people does the teacher get per year

Step-by-step explanation:

8 0

3 years ago

a train traveled 145 miles in 4.2 hours. to the nearest tenth, what was the average speed of the train in miles per hour?

AURORKA [14]

Answer:

34.5

Step-by-step explanation:

divide 145 by 4.2

4 0

4 years ago