After preparing the results of their measurement of the weight of children that participated in their pediatric study,Steph’s graduate assistant spilled coffee on their papers.If Steph is able to read that 50 lbs is the third standard deviation to

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After preparing the results of their measurement of the weight of children that participated in their pediatric study,Steph’s graduate assistant spilled coffee on their papers.If Steph is able to read that 50 lbs is the third standard deviation to
After preparing the results of their measurement of the weight of children that participated in their pediatric study,Steph’s graduate assistant spilled coffee on their papers.If Steph is able to read that 50 lbs is the third standard deviation to the left of the mean,and 110 lbs also falls on a standard deviation,then which of the following could be the mean weight of the children in the study,assuming regular distribution?Indicate all possible values.
A80
B85
C86
D95
E100
题看不太懂

After preparing the results of their measurement of the weight of children that participated in their pediatric study,Steph’s graduate assistant spilled coffee on their papers.If Steph is able to read that 50 lbs is the third standard deviation to
选A,C.D
因为80-50=30 30÷3=10 而110=80+3×10
86-50=36 36+3=12 而110=86+12×2
95-50=45 45÷3=15 而110=95+15×1
剩下两个除不尽.

The sales in July 1993 was around 7000.
The least monthly sales would be Feb and Mar 1993, which would be around 4500.
The percent increase, from 4500 to 7000, would be (7000-4500)÷4500=55.56%

在准备他们的孩子参加他们的儿科研究的重量测量结果,我的研究生助理把咖啡洒在他们的论文。如果我能读到50磅,是第三个标准差的平均左,和110磅也落在一个标准偏差,那么下面哪一个可能是本研究中的儿童的平均重量,假设均匀分布?显示所有可能的值。...

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在准备他们的孩子参加他们的儿科研究的重量测量结果,我的研究生助理把咖啡洒在他们的论文。如果我能读到50磅,是第三个标准差的平均左,和110磅也落在一个标准偏差,那么下面哪一个可能是本研究中的儿童的平均重量,假设均匀分布?显示所有可能的值。

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