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35 votes
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Mr. Rodriguez asked 60 randomly chosen students from each grade level at Willowbrook School about their favorite types of reading materials. Of those 60 students, 12 chose science fiction. Mr. Rodriguez used the data to draw the inference that about 20% of middle school students prefer to read science fiction. If 150 students attend the school, did he make a reasonable inference? Explain

User Sadikhasan
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2.9k points

2 Answers

28 votes
28 votes

Answer:

No

Explanation:

The sample size wasn't big enough. It could only be a trend in that grade.

User Patdugan
by
2.6k points
15 votes
15 votes

Answer:

Mr. Rodriguez made a reasonable assumption. His surveys were random, non-biased, and relatively large in comparison to the school population. 12 out of 60 is 20%.

Explanation:

User Shadox
by
3.0k points
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