First slide

Introduction to statistics

Question

The quartile deviation of daily wages of 7 persons which are $₹$ 12, 7, 15, 10, 17, 17, 25 is

Moderate

A

14.5
B

7
C

9
D

3.5

Solution

We have,
$Q_{3} = 17 and Q_{1} = 10 \Rightarrow Q \cdot D \cdot = \frac{1}{2} (Q_{3} - Q_{1}) = 3.5$ .

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