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Choose the correc US Use the data below for questions 1-4. 33, 25, 42, 25, 31, 37, 46, 29, 38 TH sh 1. What is the first quartile of the data? A. 25 B. 27 5 C. 29 D. 33



Answer :

Explanation:

33, 25, 42, 25, 31, 37, 46, 29, 38

Re-arranging the data set from the lowest to the highest:

25, 25, 29, 31, 33, 37, 38, 42, 46

median = (N + 1)/2

N = 9

median = (9+1)/2 = 10/2

median = 5

first quartile:

[tex]Q_1=\text{ }\frac{\frac{N}{2}+1}{2}[/tex][tex]\begin{gathered} Q_1=\text{ }\frac{\frac{9}{2}+1}{2}=\frac{4.5\text{ + 1}}{2} \\ Q_1=\text{ }\frac{5.5}{2} \\ Q_1=2.75 \end{gathered}[/tex]

From the data, the first quartile:

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