Question

If a frequency distribution has q3- q2=2(q2-q1)​,find the value of j.

Answer 1

Explanation:

Skb is Bowley's coefficient of skewness,

where Q2 is the median and 

Q1&Q3 are the lower and upper quartiles respectively.

Skb=(Q3−Q2)+(Q2−Q1)(Q3−Q2)−(Q2−Q1)

⇒Skb=90+12090−120

⇒Skb=210−30

⇒Skb=−0.142

So, it is a negatively skewed distribution.