Question

What is the best way to gather information for each of the scenarios?

Answer 1

Lisboa is wrong, I just took the test. The correct answer is

Observational study, survey, experiment, observational study

edit: nvm I'm thinking of if the first question was "who the fastest runner is" :/

Answer 2

(a) The team captain wants to know what his teammates eats before a match

Team captain know by taking a survey of teammates

(b) The team captain wants to know who can score most goals against the best player

This can be known by observation of games. so its observational study

(c) The team captain wants to know how praising the affects the teammates performance.

This can be known by experiment

(d) The team captain wants to know what other sports teammates play

This can be known by observation of games. so its observational study