The mean marks of the following distribution is : 

We are given a discrete distribution.

Use the formula:
Mean = $\frac{\sum f x}{\sum f}$

Step 1: Compute $fx$

• 10 × 14 = 140
• 67 × 13 = 871
• 23 × 2 = 46
• 19 × 17 = 323

Step 2: Compute totals

$\sum fx = 140 + 871 + 46 + 323 = 1380$
$\sum f = 14 + 13 + 2 + 17 = 46$

Step 3: Mean

Mean = $\frac{1380}{46} = 30$

Answer: 30