1. The problem asks to convert observations into a Total column and fill each row's cell based on weightage, rounding values with no decimals. 2. To solve this, we use the formula for weighted total: $$\text{Total} = \sum (\text{Observation}_i \times \text{Weightage}_i)$$ 3. Important rules: - Multiply each observation by its corresponding weightage. - Sum all these products to get the total. - Round the total to the nearest whole number (no decimals). 4. Example: If observations are 10, 20, 30 and weightages are 0.2, 0.3, 0.5 respectively, then $$\text{Total} = 10 \times 0.2 + 20 \times 0.3 + 30 \times 0.5 = 2 + 6 + 15 = 23$$ 5. Round 23 to 23 (no change as it is already whole). 6. Fill each row's cell with the calculated total based on its observations and weightages. This method ensures logical filling of cells based on weighted observations without decimals.