The variance of first 50 even natural numbers is (1) `(833)/4` (2) 833 (3) 437 (4) `(437)/4`

Explanation

To find the variance of the first 50 even natural numbers, we can follow these steps:

### Step 1: Identify the first 50 even natural numbers
The first 50 even natural numbers are:
\[ 2, 4, 6, \ldots, 100 \]

### Step 2: Calculate the mean of these numbers
The mean (average) of a set of numbers is given by the formula:
...