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Carla wants to know how many students in her school enjoy watching reality TV shows. She asks all 22 students in her science class and finds that 40% of her classmates enjoy watching reality TV shows. She claims that 40% of the school's student population would be expected to enjoy watching reality TV shows. Is Carla making a valid inference about her population?

No, it is not a valid inference because she asked all 22 students in her science class instead of taking a sample from her music class
No, it is not a valid inference because she asked all 22 students in her science class instead of taking a sample of the students in her school
Yes, it is a valid inference because she asked all 22 students in her science class
Yes, it is a valid inference because her classmates make up a random sample of the students in the school

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revfaller4life
No, it is not a valid inference because she asked all 22 students in her science class instead of taking a sample of the students in her school. In the problem, it states that she wanted to know how many people in the school enjoyed watching reality tv shows, not just in her one class. And just because it said that 40% of the school is expected to like watching reality tv shows, doesnt mean that that is true. This might be the wrong answer, but its the only one that makes sense based on the information given

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