Please help. Will fan and medal

Question

bangtankawaii · Answer

attachment

bangtankawaii · Answer

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

bangtankawaii · Answer

B. 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

bangtankawaii · Answer

C. Yes, it is a valid inference because she asked all 22 students in her science class

bangtankawaii · Answer

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

bangtankawaii · Answer

Sorry. It doesn't let me type long messages. It wouldn't let me post them. ><

pawanyadav · Answer

B

bangtankawaii · Answer

Can you explain why please? I would like to understand.

sachintha · Answer

I think it's A since her classmates doesn't represent a random sample of students in the school. Better confirm it with someone else. :)

pawanyadav · Answer

Because in school their is randomness in age group while in her science class all students of same age.

bangtankawaii · Answer

Ok.

bangtankawaii · Answer

Thank you.

pawanyadav · Answer

Welcome