The author surveyed one of his statistics classes about the numbers of friends they had in high school and the numbers of those high school friends they still consider to be friends. A scatterplot compares the two variables in Fig. 17
b. Is the association positive, negative, or neither? What does that mean in this situation?
c. For the student who had 60 friends in high school, estimate how many of those people the student still considers to be friends. Do the same for the student who had 18 friends in high school. Finally, do the same for the student who had 7 friends in high school.
d. For each of the students discussed in part (c), find the percentage of the friends the student still considers to be friends. Also, do the same for the student represented by the red dot. Explain why this student?s friendship behavior could be considered the most unusual of all the students surveyed.
This question was answered on: Jul 11, 2017
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