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I en boks ligger fem kuler. Av de er tre hvite og to sorte. Du trekker to kuler fra boksen med tilbakelegging
Merk: alle svarene er tall mellom 0 og 1, der kommatall skrives med punktum.
Hva er sannsynligheten for at den første du trekker er sort?
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", "minValue": "0.64", "maxValue": "0.64", "correctAnswerFraction": false, "allowFractions": false, "mustBeReduced": false, "mustBeReducedPC": 0, "showFractionHint": true, "notationStyles": ["plain", "en", "si-en"], "correctAnswerStyle": "plain"}, {"type": "numberentry", "useCustomName": false, "customName": "", "marks": 1, "scripts": {}, "customMarkingAlgorithm": "", "extendBaseMarkingAlgorithm": true, "unitTests": [], "showCorrectAnswer": false, "showFeedbackIcon": true, "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "nextParts": [], "suggestGoingBack": false, "adaptiveMarkingPenalty": 0, "exploreObjective": null, "prompt": "Du trekker i denne deloppgaven også to kuler, men nå uten tilbakelegging.
Hva er sannsynligheten for at den første du trekker er sort?
Du trekker i denne deloppgaven også to kuler, men også nå uten tilbakelegging.
Hva er sannsynligheten for at begge er sorte?