Mathe HA zum 10.02.2025
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@ -62,8 +62,8 @@ $
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==== Nr. 1
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$
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mu &= (-10) dot 1/4 + 0 dot 1/6 + 5 dot 1/2 + 10 dot 1/12\
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&= 5/6\
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mu &= (-10) dot 1 / 4 + 0 dot 1 / 6 + 5 dot 1 / 2 + 10 dot 1 / 12\
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&= 5 / 6\
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sigma &= sqrt(
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(-10 - mu)^2 dot 1/4 +
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(0 - mu)^2 dot 1/6 +
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@ -75,4 +75,27 @@ $
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Auf lange Sicht würde $mu$ also anzeigen, dass wir uns $5/6$ nähern würden.
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==== Nr. 2
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#underline[*a)*]
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- Versuch 1: $2 dot 2"ct" + 0 dot 1"ct"=4"ct"$
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- Versuch 2: $1 dot 2"ct" + 1 dot 1"ct" = 3"ct"$
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- Versuch 3: $0 dot 2"ct" + 2 dot 1"ct" = 2"ct"$
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#underline[*b)*]
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$
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mu &=
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1"ct" dot 2 / 4 +
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2"ct" dot 2 / 4
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= 1.5
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\
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sigma &=
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sqrt(
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(1 - mu)^2 dot 2/4 +
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(2 - mu)^2 dot 2/4
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)\
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&= 0.5
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$
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schule/mathe/pdfs/MA_2025-02-06.pdf
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schule/mathe/pdfs/MA_2025-02-06.pdf
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