In a statistic class, 10 scores were randomly selected with the following results were obtained:
74, 73, 77, 77, 71, 68, 65, 77, 67, 66

-What is the third quartile?
A)65.9
B)67.3
C)66.75
D)73.85
E)77.0

Question

In a statistic class, 10 scores were randomly selected with the following results were obtained:
74, 73, 77, 77, 71, 68, 65, 77, 67, 66

-What is the third quartile?
A)65.9
B)67.3
C)66.75
D)73.85
E)77.0

Quizplus · Accepted Answer

The third quartile (Q3) is the median of the upper half of the data. When the scores are ordered (65, 66, 67, 68, 71, 73, 74, 77, 77, 77), the upper half is 73, 74, 77, 77, 77. The median of these five numbers is 77.

In a Statistic Class, 10 Scores Were Randomly Selected with the Following