Write the formula of Q1 and Q3 .

Question

Answer the following question on the basis of the given table:

Marks	30	10	20	40	50
No. of Students	13	4	7	8	6

Write the formula of Q₁and Q₃ .

Answer 1

Q₁ = size of \(\left(\frac{n+1}{4}\right)\) ^th Observation 

Q₃ = size of 3 \(\left(\frac{n+1}{4}\right)\)^th Observation