m*****y
发帖数: 120 | 1 let's say in a room there are 2 boxes. We have 40 balls: 20 red and 20 blue.
Let's put the balls into these 2 boxes, so that, if anyone comes in and
randomly pickup a ball, the probability of picking the red ball is max.
Each box can hold as many balls as you want.
So how to allocate the balls to the boxes? |
w******g
发帖数: 313 | 2 box1:19red+20blue
box2:1red
blue.
【在 m*****y 的大作中提到】
: let's say in a room there are 2 boxes. We have 40 balls: 20 red and 20 blue.
: Let's put the balls into these 2 boxes, so that, if anyone comes in and
: randomly pickup a ball, the probability of picking the red ball is max.
: Each box can hold as many balls as you want.
: So how to allocate the balls to the boxes?
|
x*****p
发帖数: 1707 | 3 Correct!
【在 w******g 的大作中提到】
: box1:19red+20blue
: box2:1red
:
: blue.
|
d*******l
发帖数: 338 | 4 只要有一个box满足blue数目多于red且两者数目之和大于20的任何方案都可以 |
a********m
发帖数: 15480 | |
m*****y
发帖数: 120 | 6 Can you explain this?
【在 d*******l 的大作中提到】
: 只要有一个box满足blue数目多于red且两者数目之和大于20的任何方案都可以
|
