一道英文统计题a box contains 10 tickets.each ticket is marked with a whole number between -5 and 5.The numbers are not all the same;their average equals 0.(a) 100 draws are made from the box,and you win $1 if the sum is between -15 and 15(B) 1

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一道英文统计题aboxcontains10tickets.eachticketismarkedwithawholenumberbetween-5and5.Thenumbersarenotallthes

一道英文统计题a box contains 10 tickets.each ticket is marked with a whole number between -5 and 5.The numbers are not all the same;their average equals 0.(a) 100 draws are made from the box,and you win $1 if the sum is between -15 and 15(B) 1
一道英文统计题
a box contains 10 tickets.each ticket is marked with a whole number between -5 and 5.The numbers are not all the same;their average equals 0.
(a) 100 draws are made from the box,and you win $1 if the sum is between -15 and 15
(B) 100 draws are made from the box,and you win $1 if the sum is between -30 and 30
以上两种选择应该选哪个获利多?为什么?

一道英文统计题a box contains 10 tickets.each ticket is marked with a whole number between -5 and 5.The numbers are not all the same;their average equals 0.(a) 100 draws are made from the box,and you win $1 if the sum is between -15 and 15(B) 1
B的选择获利多.
因为B选择包含了A选择的情况.

一道英文统计题a box contains 10 tickets.each ticket is marked with a whole number between -5 and 5.The numbers are not all the same;their average equals 0.(a) 100 draws are made from the box,and you win $1 if the sum is between -15 and 15(B) 1 一道英文数学概率题A box contains 4 black cubes and 6 white cubes.A cube is drawn from the box.Its colour noted and a cube of the other colour is then added to the box.A second cube is then drawn.(a).If both cubes are of the same colour,what 一道数据统计填空题. SSAT数学a box was made in the form of a cube,if a second cubical box has inside imensions thress times those of the first box,how many time as much does it contain? 一道初二英语的改错题改错:Bring a first-aid box is useful. 初三英语用所给单词适当形式填空Father showed me a pretty box _______(contain)a large doll in it.讲解原因 一道英文C++题,Assume your program needs to store the part number of an item and its cost.The part number contains only whole numbers in the range of 5000 to 8000.The cost of an item ranges from $1200 to $3500,the cost can contain a decimal place 请教一道英文数学题?题目如下:A rectangular box without a lid has volume 0.5 cubic metres. Find the minimum surface area. 一道高中数学概率统计题18 概率统计的一道证明题 请大家看看,有关比较级的一道语法题7. Living organisms contain more water _________ substance.(A) than do any other(B) does than any other(C) other than do they any(D) than they do any otherthey do 代替Living organisms contain.但 pencil box英文意思 英文Big-box是什么意思 一道概率统计题目 please put___ a.it on b.on them c.them on d.on ityou can put them in the box.the box is not___ a.full b.emptyc.big d.light单选写原因 下面还有一道题 谁能帮我解答一道英语六级选择题Critics______that these reforms will lead to a decline in educational standards.A.retain B.maintain C.contain D.obtain 求教一道6级单选题Critics____that these reforms will lead to a decline in educational stanards.A retain B maintain C contain D obtain 求高手做一道高中数学概率统计题18