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母集団：研究や調査の対象となる全ての要素の集合。無作為抽出はこの母集団からデータを選ぶ手法です。On July 19, 2024, a worldwide IT outage impacted Microsoft expert services, influencing businesses, Airways, and financial establishments globally. The outage was traced back to a flawed update of CrowdStrike's cybersecurity software program, which resulted in Microsoft techniques crashing and resulting in disruptions throughout different sectors.
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層化抽出法において「層の設定」が正確性を大きく左右する重要な工程です。層の基準は、調査目的や母集団の性質に基づいて決定されます。たとえば、消費者調査では性別や年齢、収入などが層の区切りになります。分類が適切であればあるほど、各層内のばらつきが小さくなり、調査結果の分散が抑えられて精度が高まります。逆に、関連性の低い要素で層を分けると、サンプルの有効性が低下する可能性があります。調査設計の段階で、どの基準が分析に有効かを検討し、合理的に層分けすることで、信頼性の高いデータが得られます。 層化抽出法を活用したマーケティング調査の具体事例
無作為抽出では、調査対象となる母集団（全体のグループ）からランダムにサンプリングを行います。例えば、ある学校の生徒を対象に「好きな食べ物」を調べたいとします。この場合、全校生徒から無作為に選んだ生徒たちに質問することで、学校全体の食べ物の好みを知ることができるのです。
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Beneath Virtual memory, find Improve and Guantee that Quickly take care of paging file measurements for all drives is selected.
PRISM is usually a clandestine surveillance software less than which the NSA collects user info from companies like Microsoft and Facebook.[329] Criticism of Microsoft has followed several aspects of its items and business enterprise practices. Regularly criticized are classified as the simplicity of use, robustness, and stability of the company's software program. It's also been criticized for the usage of permatemp staff members (workforce employed For a long time as "temporary", and therefore without having health-related Advantages), the usage of pressured retention strategies, which means that personnel might be sued when they made an effort to go away.
On July 27, 1994, the Division of Justice's Antitrust Division submitted a competitive impression assertion Having said that: "Beginning in 1988 and continuing right up until July fifteen, 1994, Microsoft induced many OEMs to execute anti-competitive for every processor licenses. Beneath a สินค้าราคาถูก kaieverything for every-processor license, an OEM pays Microsoft a royalty for each Laptop it sells that contains a selected microprocessor, whether the OEM sells the computer that has a Microsoft operating program or possibly a non-Microsoft functioning method.
Microsoft has actually been industry-dominant during the IBM Computer–appropriate operating method market place and the Place of work program suite marketplace Because the nineties. Its most effective-recognized application solutions are the Windows line of working programs as well as Microsoft Office and Microsoft 365 suite of productivity programs, which most notably incorporate the Phrase phrase processor, Excel spreadsheet editor, as well as PowerPoint presentation application. Its flagship components products are the Surface lineup of personal computers and Xbox video sport consoles, the latter of which includes the Xbox network; the organization also offers A variety of buyer Net companies for instance Bing Website research, the MSN World wide web portal, the Outlook.
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確率サンプリング：各サンプルが選ばれる確率が既知であるサンプリング手法。無作為抽出はこの一つの形態。
On a Friday afternoon in January 2024, Microsoft disclosed that a Russian condition-sponsored team hacked into its corporate units. The group, accessed "a very modest share" of Microsoft corporate e mail accounts, which also incorporated users of its senior leadership crew and workforce in its cybersecurity and authorized teams.