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Jacob wants to know how many students in his school enjoy watching space travel programs on TV. He poses this question to all 20 students in his history class and finds that 80% of his classmates enjoy watching space travel programs on TV. He claims that 80% of the school's student population would be expected to enjoy watching space travel programs on TV. Is Jacob making a valid inference about this population?

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amiramalik808
no because he has not went to other classes
No.

cuz' "He poses this question to all 20 students in his history class" and that is not a random sample of the school's student - they are all history buffs! lol

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