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Olgu meil kaks ühesuguse keskväärtuse, kuid erineva standardhälbega normaaljaotust:
A: keskväärtus μ = 50, standardhälve σ = 30;
B: keskväärtus μ = 50, standardhälve σ = 20.
Kummal juhul on tõenäosus P( X < 10) suurem?
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