anonymous
  • anonymous
Jane surveys a random sample of 200 students from her middle school to learn what type of school lunch is preferred. The table below shows the result of the survey: Lunch Type Sandwich Hot Dog Salad Number of students 84 85 31 Which of the following inferences can be made based on the data? A sandwich is the most preferred lunch. A sandwich is two times more popular than a salad. Sandwiches and hot dogs are almost equally preferred. A hot dog is almost two times more popular than a salad.
Mathematics
katieb
  • katieb
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At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

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Michele_Laino
  • Michele_Laino
total number of student: 84+85+31=...
Michele_Laino
  • Michele_Laino
please complete my computation
anonymous
  • anonymous
It is 200 right.

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Michele_Laino
  • Michele_Laino
ok! right! probability for sandwich is: 84/200=...
anonymous
  • anonymous
0.42
Michele_Laino
  • Michele_Laino
yes! or equivalently 42%
Michele_Laino
  • Michele_Laino
next: probability for hot dog, is: 85/200=...
Michele_Laino
  • Michele_Laino
the probability is given by the subsequent ratio r: r= favorable outcome/possible outcome now we can consider our probabilities as experimental frequencies
Michele_Laino
  • Michele_Laino
\[\Large \frac{{85}}{{200}} = ...?\]
Michele_Laino
  • Michele_Laino
next: probability for salad, or experimental frequency for salad is: \[\Large \frac{{31}}{{200}} = ...?\] please complete my computation

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