In the following set of data, what are the first, second, and third quartiles? 1 3 5 6 7 9 100
A) 1, 6, and 100.
B) 3, 5, and 9.
C) 3, 6, and 9.
D) 1, 5, and 100.

Question

Quizplus · Accepted Answer

To find the quartiles, we must first order the data set: 1 3 5 6 7 9 100.

The median (Q2) is the middle number, which in this case is 6.

To find Q1, we split the data set into two halves: 1 3 5 and 6 7 9 100. Q1 is the median of the first half, which is 3.

To find Q3, we again split the data set into two halves: 1 3 5 6 and 7 9 100. Q3 is the median of the second half, which is 9.

Therefore, the first, second, and third quartiles are 3, 6, and 9. So, the correct answer is C.

In the Following Set of Data, What Are the First