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 first quartile?
A)65.9
B)67.3
C)66.75
D)73.85
E)77.0

Question

Quizplus · Accepted Answer

The first quartile is the median of the lower half of the data. The data can be ordered as: 65, 66, 67, 68, 71, 73, 74, 77, 77, 77. The median of the lower half is 67.5, so the first quartile is 67.5.

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