来自马峻峰的问题
Asoft-drinkmachineisregulatedsothatitdischargesanaverageof200milliliterspercup.Iftheamountofdrinkisnormallydistributedwithastandarddeviationequalto15milliliters,belowwhatvaluedowegetthesmallest25%ofthedrinks?
Asoft-drinkmachineisregulatedsothatitdischargesanaverageof200millilitersper
cup.Iftheamountofdrinkisnormallydistributedwithastandarddeviationequalto
15milliliters,belowwhatvaluedowegetthesmallest25%ofthedrinks?
1回答
2020-06-07 18:37