200
Section 4 #1 A high school counselor conducted a study over 16 consecutive quarters to determine the number of students with part-time jobs. Each student in the 2014 graduating class is surveyed once per quarter for all four years of high school.
During which of the following periods is the increase in the number of students with part-time jobs largest?
A) Quarters 4 through 6 B) Quarters 7 through 10 C) Quarters 11 through 14 D) Quarters 13 through 16
What is B?
Choice B is correct. Looking at the graph, it can be concluded that
there is an increase of fewer than 10 students during quarters 4
through 6, quarters 11 through 14, and quarters 13 through 16. There
is an increase of more than 20 students during quarters 7 through
10. Therefore, of the four ranges given in the answer choices, the
greatest increase in the number of students occurs during quarters
7 through 10.
Choices A, C, and D are incorrect. There is an increase of fewer
than 10 students during quarters 4 through 6, quarters 11 through
14, and quarters 13 through 16. There is an increase of more than
20 students during quarters 7 through 10. Therefore, the greatest
increase in the number of students does not occur in the ranges
given in choices A, C, and D.