random variable X is normally distributed,with a mean of 25
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random variable X is normally distributed,with a mean of 25 and a standard deviation of 4.
Which of the following is cloest to the inter-quartile range for this distribution?
A 25-22.3=2.7 B 27.7-22.3=5.4 C 27.7/22.3=1.24 D 2(4)=8 E 37-13=24
Which of the following is cloest to the inter-quartile range for this distribution?
A 25-22.3=2.7 B 27.7-22.3=5.4 C 27.7/22.3=1.24 D 2(4)=8 E 37-13=24
随机变量x是通常分布的,其平均数为25,标准差是4,下面哪一个最接近这个分布的四分位数区间?
mean是平均数,是一组数据的总数量除以这组数据的总份数所得的商,standard deviation是标准差,是各个数据与平均数之差的平方的平均数的算术平方根.inter-quartile range 是四分位差,它是上四分位数(QL)与下四分位数(QU)之差.这道题目应该是选择A,希望我能帮助你解疑释惑.
mean是平均数,是一组数据的总数量除以这组数据的总份数所得的商,standard deviation是标准差,是各个数据与平均数之差的平方的平均数的算术平方根.inter-quartile range 是四分位差,它是上四分位数(QL)与下四分位数(QU)之差.这道题目应该是选择A,希望我能帮助你解疑释惑.
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