Answer:
Collins sampling method is the most effective.
Explanation:
There are a few reasons for this.
1. A much greater population of results
2. The people surveyed were chosen randomly so give a better insight into the population over all.
The second sampling method is a bit flawed in that it asks only 25 people, and these 25 people were sat near him and so may have similar interests therefore providing a degree of skew.
