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26 A school wants to study whether there is a connection between the grades received in mathematics classes and what other subjects the students attend during the semester Which procedure is most appropriate for this study? Randomly assign students to mathematics classes (if they are planning to take one) and then randomly assign them to other subjects. Let students select all dlasses and then randomly select from the pool of students attending at least one mathematics class. O B. Let students select mathematics classes (possibly none) and then randomly assign them to other classes. Let students select mathematics classes (possibly none) and then randomly assign them to other classes making sure that as many possible combinations of classes taken are covered. o D.
21 of 48 27 A survey asked 2,000 random people how many states they have ever visited. Two hundred people surveyed responded that they have been to all 50 states. Which conclusion can be made about the population from this survey? A. Twenty percent of the population has traveled to all 50 states B. Ten percent of the population has traveled to all 50 states. C. Most people have traveled to ten percent of the states D. Half the population has traveled to 20 percent of the states
math   Statistics-And-Probability   
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26. D

Because in this way we will be able to study all the combinations and then find whether a relation is there or not.

27. B

As 200/2000*100 = 10%

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