Statistics-And-Probability Question 618
Question: For a series the value of mean deviation is 15. The most likely value of its quartile deviation is
Options:
A) 12.5
B) 11.6
C) 13
D) 9.7
Show Answer
Answer:
Correct Answer: A
Solution:
[a] Since, $ MD=\frac{4}{5}\sigma ,QD=\frac{2}{3}\sigma $
$ \Rightarrow \frac{MD}{QD}=\frac{6}{5}\Rightarrow QD=\frac{5}{6}(MD)=\frac{5}{6}.(15)=12.5 $
BETA
