Johnny wants to know how many students in his school enjoy watching science programs on TV. He poses this question to all 26 students in his science class and finds that 75% of his classmates enjoy watching science programs on TV. He claims that 75% of the school's student population would be expected to enjoy watching science programs on TV. Is Johnny making a valid inference about this population? (5 points)
Yes, it is a valid inference because his classmates make up a random sample of the students in the school
Yes, it is a valid inference because he asked all 26 students in his science class No, it is not a valid inference because he asked all 26 students in his science class instead of taking a sample from his math class
No, it is not a valid inference because his classmates do not make up a random sample of the students in the school

Question

29-03-2016
Mathematics

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Johnny wants to know how many students in his school enjoy watching science programs on TV. He poses this question to all 26 students in his science class and finds that 75% of his classmates enjoy watching science programs on TV. He claims that 75% of the school's student population would be expected to enjoy watching science programs on TV. Is Johnny making a valid inference about this population? (5 points)
Yes, it is a valid inference because his classmates make up a random sample of the students in the school
Yes, it is a valid inference because he asked all 26 students in his science class No, it is not a valid inference because he asked all 26 students in his science class instead of taking a sample from his math class
No, it is not a valid inference because his classmates do not make up a random sample of the students in the school

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Аноним Аноним · Answer 1 · 2016-03-29T19:45:46+02:00

Аноним Аноним

29-03-2016

No is it not valid because that is only the kids in his class, not the whole school

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chisnau chisnau · Answer 2 · 2019-05-31T19:58:52+02:00

Answer:

Option D is the correct answer.

Step-by-step explanation:

Given scenario is :

Johnny wants to know how many students in his school enjoy watching science programs on TV.

He poses this question to all 26 students in his science class and finds that 75% of his classmates enjoy watching science programs on TV.

He claims that 75% of the school's student population would be expected to enjoy watching science programs on TV.

No, this is not a valid inference as Johnny has asked the question to only his classmates. This does not denote the whole population of the school.

Therefore, the correct option is - No, it is not a valid inference because his classmates do not make up a random sample of the students in the school.