Can you please check my work?

Question

A city planning committee surveys 100 people waiting at a bus stop about the expansion of the public transportation system.

Is this an example of a: random sample, systematic sample, self-selected sample, convenience sample, bipartisan sample, or stratified random sample?

I think that it's an example of a convenience sample.

Volunteers stop to survey residents of every fourth house from the end of each block in town.

Is this an example of a: random sample, systematic sample, self-selected sample, convenience sample, bipartisan sample, or stratified random sample?

I think that it's an example of a systematic sample.

Answer 1

1 agree
https://hrdag.org/convenience-samples-what-they-are/

2 agree
http://en.wikipedia.org/wiki/Sampling_%28statistics%29#Systematic_sampling

Answer 2

This is Algebra 1 where ?

Answer 3

This is so late but yep, you're all correct.

I just wanted to put it out there though and say that I can't believe you take all those hard courses in our school, I bailed out of Physics to hurry and get it over with so

Answer 4

no