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En sportsfisker mener at fiskene hun fanger i et vann med god tilnærming her vekt som er normalfordelt. La en stokastisk variabel X være vekten og følgende fordeling:

X∼N(μ,σ) ,der μ=350g og σ=40g

Hva er sannsynligheten for at en vilkårlig fanget fisk er mellom 310g og 350g ?


trenger hjelp med hvordan man regner dette ut, sitter ganske fast

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