A psychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. She randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. Does this sampling plan result in a random sample? Simple random sample? Explain.

No

No

Each business major student is more likely to be selected than each political science student. Stratified Sampling was used.

Step-by-step explanation:

It is not a random sample nor a simple random sampling because each business major student is more likely to be selected than each political science student. In order for this to be a simple random sampling process, she would have to select 200 out of the full 440 students (260+180). The process applied was stratified sampling.

problem:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

f(5/2) = 10/3

i hope this !