Question

Maggie wants to know how many students in her school enjoy watching sports on TV. She asks all 25 students in her math class and finds that 60% of her classmates enjoy watching sports on TV. She claims that 60% of the school's student population would be expected to enjoy watching sports on TV. Is Maggie making a valid inference about her population?

Yes, it is a valid inference because she asked all 25 students in her math class

Yes, it is a valid inference because her classmates make up a random sample of the students in the school

No, it is not a valid inference because her classmates do not make up a random sample of the students in the school

No, it is not a valid inference because she asked all 25 students in her math class instead of taking a sample from her geography class

Answer 1

yes it is a valid inference because her classmates make up a random sample of the students in the school

Answer 2

the population under consideration = all the students in the school.

Unfortunately maggie only took her sample from one class - the 25 students in her maths class, so her results will be biased.

~The aanswer is:

No, it is not a valid inference because her classmates do not make up a random sample of the students in the school