預測和趨勢分析：民調可以幫助預測某些趨勢或行為的未來發展，如選舉結果、市場需求等。
社會科學研究：學者和研究者使用民調來了解人們的社會、文化和心理特征，以及其與行為的關係。
民意調查(輿論調查)的意義是指為瞭解大多數民眾的看法、意見、利益與需求，以科學、系統與公正的資料，蒐集可以代表全部群眾(母體)的部分群眾(抽樣)，設計問卷題目後，以人工或電腦詢問部分民眾對特定議題的看法與評價，利用抽樣出來部分民眾的意見與看法，來推論目前全部民眾的意見與看法，藉以衡量社會與政治的狀態。 以下是進行民調調查的基本步驟： 定義目標和目的：首先，調查者需要明確調查的目的。是要了解公眾對某個政策的看法？還是要評估某個政治候選人的支持率？
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“There might be some website traffic disruption throughout the early morning and night in the town centre of Liverpool and Southport.”
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數據分析：收集到的數據將被分析以得出結論。這可能包括計算百分比、平均值、標準差等，以及更複雜的統計分析。
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