add task solution

[Alibobick]

• DEMO LINK

[mateacademy-ai-mentor]

Review Summary

The implementation correctly handles all requirements: it successfully parses population data from .population elements, converts comma-separated number strings using replace(/,/g, ''), calculates both total and average values in a single pass, and formats the output using toLocaleString() to match the thousands separator style of the input data. The DOM updates for both .average-population and .total-population elements are working as expected, replacing the "Calculate it!" placeholder text with properly formatted results. The code is clean with appropriate use of strict mode and clear variable naming. No issues were identified that would prevent task completion.

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