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Home Q & A Board Science-Related Homework Help Mathematics Statistics and Probability
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dskmvld dskmvld
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4 years ago

Question 1.

A teacher has a morning class with 24 students, and they had a mean score of 84% on the midterm exam.  The afternoon class has 28 students, and they had a mean score of 86% on the same exam.  Does it follow that the mean score for both classes combined is 85%?  Explain.

Question 2.

A food inspector finds that 6% of the packaged spinach tested at one organic food distributor contain bacteria and 10% of the packaged spinach at another organic food distributor contain bacteria.  Does it follow that between the two organic food distributors, a total of 8% of the packaged spinach tested contain E. coli bacteria?  Why or why not?
Textbook 
Statistical Reasoning for Everyday Life

Statistical Reasoning for Everyday Life


Edition: 5th
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jfinn1021jfinn1021
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4 years ago
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dskmvld Author
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4 years ago
Good timing, thanks!
aricketts6@
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Yesterday
this is exactly what I needed
bkrandy
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2 hours ago
Smart ... Thanks!
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