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NO.PZ2017092702000079问题如下The value of the cumulative stribution function F(x), where x is a particuloutcome, for a screte uniform stribution:A.sums to 1.B.lies between 0 an1.C.creases x increases. B is correct. The value of the cumulative stribution function lies between 0 an1 for any x: 0 ≤ F(x) ≤ 1.对于任何 x值,累积分布函数的值介于 0 和 1 之间0 ≤ F(x) ≤ 1。 没太看懂为什么和不是1?
NO.PZ2017092702000079问题如下The value of the cumulative stribution function F(x), where x is a particuloutcome, for a screte uniform stribution:A.sums to 1.B.lies between 0 an1.C.creases x increases. B is correct. The value of the cumulative stribution function lies between 0 an1 for any x: 0 ≤ F(x) ≤ 1.对于任何 x值,累积分布函数的值介于 0 和 1 之间0 ≤ F(x) ≤ 1。 视频中何老师讲的是连续的分布,所以F(X)等于1,但是F(X)的sum 也是大于1的。但是题目问的是screte uniform stribution, 是不是这一方面也和连续分布一样。离散均匀和连续均匀分布的区别,在于,P(x) 有数,后者等于0。请问这样理解对吗?
NO.PZ2017092702000079 lies between 0 an1. creases x increases. B is correct. The value of the cumulative stribution function lies between 0 an1 for any x: 0 ≤ F(x) ≤ 1. 对于任何 x值,累积分布函数的值介于 0 和 1 之间0 ≤ F(x) ≤ 1。 该题问的是离散均匀变量,A为什么不对
NO.PZ2017092702000079 lies between 0 an1. creases x increases. B is correct. The value of the cumulative stribution function lies between 0 an1 for any x: 0 ≤ F(x) ≤ 1. 对于任何 x值,累积分布函数的值介于 0 和 1 之间0 ≤ F(x) ≤ 1。 这道题不太明白考察的哪个知识点
NO.PZ2017092702000079 我知道选b,A错在应该超过1,比如F(-2)+F(1),F(1)的面积已经覆盖了F(-2)的面积了,所以超过1,我的理解对不?c错在x变大那个F(X)也变大因为都是看左边的面积,越往右面积越大,对不。