Question

The median class of the following table will be: 

• A. 10–20
• B. 20–30
• C. 30–40
• D. 40–50

Hint:

To find the median class, locate where the cumulative frequency first becomes greater than $\dfrac{N}{2}$.

Answer 1

The Correct Option is C

Step 1: Find cumulative frequencies. 

Step 2: Determine $N/2$. 
\[ N = 49 \Rightarrow N/2 = 24.5 \] Step 3: Identify the median class. 
The class in which the cumulative frequency first exceeds 24.5 is 30–40. 
Step 4: Conclusion. 
Hence, the median class is 30–40.