Question

ചതുരംശ വ്യതിയാനം കണ്ടെത്തുക :

x	2	4	6	8	10
f	1	5	6	7	1

• A. 3
• B. 4
• C. 2
• D. 5

Answer 1

Answer:

C. 2

N = 20

$Q_1 = {(\frac{N + 1}{4})}^{th} value = \frac{21}{4}^{th} value =5.25^{th}$

$Q_1 = 4$

$Q_3 = {3 \times (\frac{N + 1}{4})}^{th} value = 3 \times \frac{21}{4}^{th} value =15.75^{th}$

$Q_3 = 8$

$QD = \frac{(Q_3 - Q_1)}{2}$

$QD = \frac{8-4}{2} = 2$

x	f	cf
2	1	1
4	5	6
6	6	12
8	7	19
10	1	20
	20