The sentence which is not used in the randomization situation
1. The coach is observing only football players attending the meeting.
3. The football players are volunteering for the test.
What is randomization?
The sample is not biased. The members were selected at random from the gym's female population.
The question is biased. It described the weight lifting machines as "easy" and the free weights as "harder".
The meeting is not mandatory and only volunteers are participating in the task he wanted, this shows bias and doesn't correctly represent the whole team.
Therefore, the correct answer is options is 1 and 3.
To learn more about randomization
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