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15 Jan 2025, 11:49
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Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
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100% (02:28) correct
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What was the median grade point average of the 3,000 students in 1950?
(A) 3.7
(B) 3.3
(C) 3.0
(D) 2.7
(E) 2.3
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18 Jan 2025, 11:13
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OE
The median is the middle value of an ordered list of numbers. For the 3,000 students in 1950, the median grade point average is the average of the 1,500th highest grade point average and the 1,501st highest grade point average. The students in 1950 are represented by the light gray bars. From the chart, you know the following:
150 students had a 4.0 grade point average.
225 students had a 3.7 grade point average. (Total with this GPA and higher = 150 + 225 = 375)
300 students had a 3.3 grade point average. (Total with this GPA and higher = 375 + 300 = 675)
450 students had a 3.0 grade point average. (Total with this GPA and higher = 675 + 450 = 1,125)
475 students had a 2.7 grade point average. (Total with this GPA and higher = 1,125 + 475 = 1,600)
The 1,500th and 1,501st students fall between the 1,125th and 1,600th students.
Thus, the 1,500th and 1,501st highest grade point averages are both 2.7.
The median is the middle value of an ordered list of numbers. For the 3,000 students in 1950, the median grade point average is the average of the 1,500th highest grade point average and the 1,501st highest grade point average. The students in 1950 are represented by the light gray bars. From the chart, you know the following:
150 students had a 4.0 grade point average.
225 students had a 3.7 grade point average. (Total with this GPA and higher = 150 + 225 = 375)
300 students had a 3.3 grade point average. (Total with this GPA and higher = 375 + 300 = 675)
450 students had a 3.0 grade point average. (Total with this GPA and higher = 675 + 450 = 1,125)
475 students had a 2.7 grade point average. (Total with this GPA and higher = 1,125 + 475 = 1,600)
The 1,500th and 1,501st students fall between the 1,125th and 1,600th students.
Thus, the 1,500th and 1,501st highest grade point averages are both 2.7.
