c***3
发帖数: 27 | 1 如题，职位是做NLP和domain search的。 多谢！ |
c***3
发帖数: 27 | 2 刚面完, 问题如下
1. A bag contains 40 balls, each of which is black or gold. A person reaches
into the bag and randomly removes two balls. Each ball in the bag is
equally likely to be removed. If the probability that two gold balls are
removed is 5/12, how many of the 40 balls are gold?
n*(n-1)/40*39 = 5/12， n = 26
2. Player A and Player B will play 6 games of table tennis. Each is equally
likely to win any given game.
The probability that each of them will win 3 games out of 6 is 5/16.
What is the probability that Player A will win more games than player B?
p(A>B) = p(A=4, B=2) + p(A=5, B=1) + P(A=6, B=0) = C(6, 4) * (1/2) ^ 6 + C(6
, 5) * (1/2) ^ 6 + C(6, 6) * (1/2) ^6 = 11/32
3. sentence fragments english words, 7 - 12 words long, build features and
model to determine if the sentence has significant meaning?
examples:
i am a goat
game no note have
the the the the
【在 c***3 的大作中提到】
: 如题，职位是做NLP和domain search的。 多谢！
|
l******n
发帖数: 9344 | 3 2.(1-5/16)/2，对称的
reaches
equally
【在 c***3 的大作中提到】
: 刚面完, 问题如下
: 1. A bag contains 40 balls, each of which is black or gold. A person reaches
: into the bag and randomly removes two balls. Each ball in the bag is
: equally likely to be removed. If the probability that two gold balls are
: removed is 5/12, how many of the 40 balls are gold?
: n*(n-1)/40*39 = 5/12， n = 26
: 2. Player A and Player B will play 6 games of table tennis. Each is equally
: likely to win any given game.
: The probability that each of them will win 3 games out of 6 is 5/16.
: What is the probability that Player A will win more games than player B?
|
b******6
发帖数: 38 | 4 嗯，不错。第三题大家讨论下，我答的不好。
【在 l******n 的大作中提到】
: 2.(1-5/16)/2，对称的
:
: reaches
: equally
|
T*****u
发帖数: 7103 | |
S******n
发帖数: 90 | 6 Are you a master student or doctoral student?
【在 c***3 的大作中提到】
: 如题，职位是做NLP和domain search的。 多谢！
|
c***3
发帖数: 27 | 7 今年的物理博士毕业，没有相关经验。
【在 S******n 的大作中提到】
: Are you a master student or doctoral student?
|
c***3
发帖数: 27 | 8 如题，职位是做NLP和domain search的。 多谢！ |
c***3
发帖数: 27 | 9 刚面完, 问题如下
1. A bag contains 40 balls, each of which is black or gold. A person reaches
into the bag and randomly removes two balls. Each ball in the bag is
equally likely to be removed. If the probability that two gold balls are
removed is 5/12, how many of the 40 balls are gold?
n*(n-1)/40*39 = 5/12， n = 26
2. Player A and Player B will play 6 games of table tennis. Each is equally
likely to win any given game.
The probability that each of them will win 3 games out of 6 is 5/16.
What is the probability that Player A will win more games than player B?
p(A>B) = p(A=4, B=2) + p(A=5, B=1) + P(A=6, B=0) = C(6, 4) * (1/2) ^ 6 + C(6
, 5) * (1/2) ^ 6 + C(6, 6) * (1/2) ^6 = 11/32
3. sentence fragments english words, 7 - 12 words long, build features and
model to determine if the sentence has significant meaning?
examples:
i am a goat
game no note have
the the the the
【在 c***3 的大作中提到】
: 如题，职位是做NLP和domain search的。 多谢！
|
l******n
发帖数: 9344 | 10 2.(1-5/16)/2，对称的
reaches
equally
【在 c***3 的大作中提到】
: 刚面完, 问题如下
: 1. A bag contains 40 balls, each of which is black or gold. A person reaches
: into the bag and randomly removes two balls. Each ball in the bag is
: equally likely to be removed. If the probability that two gold balls are
: removed is 5/12, how many of the 40 balls are gold?
: n*(n-1)/40*39 = 5/12， n = 26
: 2. Player A and Player B will play 6 games of table tennis. Each is equally
: likely to win any given game.
: The probability that each of them will win 3 games out of 6 is 5/16.
: What is the probability that Player A will win more games than player B?
|
|
|
T*****u
发帖数: 7103 | |
S******n
发帖数: 90 | 12 Are you a master student or doctoral student?
【在 c***3 的大作中提到】
: 如题，职位是做NLP和domain search的。 多谢！
|
c***3
发帖数: 27 | 13 今年的物理博士毕业，没有相关经验。
【在 S******n 的大作中提到】
: Are you a master student or doctoral student?
|
G********b
发帖数: 3 | 14 有没有大神可以指教一下第三题的思路或者参考资料？ |
G********b
发帖数: 3 | 15 有没有大神可以指教一下第三题的思路或者参考资料？ |
