x********i
发帖数: 54 | |
d**0
发帖数: 124 | |
x********i
发帖数: 54 | |
v**n
发帖数: 130 | 4 if calculator is allowed then you can use binomial old fashion way :) |
d**0
发帖数: 124 | 5 面试题一般normalize之后你会得到+/-2, 95%confidence interval你懂得。。。
【在 x********i 的大作中提到】
: 但是如果没有Normal CDF的数值表呢？
|
x******a
发帖数: 6336 | 6 why cdf?
【在 x********i 的大作中提到】
: 但是如果没有Normal CDF的数值表呢？
|
a*******6
发帖数: 24 | 7 simple. in Excel: COMBIN(100,60) / 2^100 = 1.0844% |
E*******1
发帖数: 3464 | 8 this is a standard question of weak law of large numbers, using Chebyshev
ineq. |
x********i
发帖数: 54 | |
d**0
发帖数: 124 | |
|
|
x********i
发帖数: 54 | |
v**n
发帖数: 130 | 12 if calculator is allowed then you can use binomial old fashion way :) |
d**0
发帖数: 124 | 13 面试题一般normalize之后你会得到+/-2, 95%confidence interval你懂得。。。
【在 x********i 的大作中提到】
: 但是如果没有Normal CDF的数值表呢？
|
x******a
发帖数: 6336 | 14 why cdf?
【在 x********i 的大作中提到】
: 但是如果没有Normal CDF的数值表呢？
|
a*******6
发帖数: 24 | 15 simple. in Excel: COMBIN(100,60) / 2^100 = 1.0844% |
E*******1
发帖数: 3464 | 16 this is a standard question of weak law of large numbers, using Chebyshev
ineq. |
c*********9
发帖数: 18 | 17 Can you explain it a bit please？
not a math guru。。。
thanks
【在 E*******1 的大作中提到】
: this is a standard question of weak law of large numbers, using Chebyshev
: ineq.
|
f**x
发帖数: 4325 | 18 I don't think we can use Chebyshev in this case.
For 100 tosses, 60% = 1 std, => P(>=60)=0.5. This is a useless conclusion.
It is better to just memorize P(X> 1*std) = 16%
【在 E*******1 的大作中提到】
: this is a standard question of weak law of large numbers, using Chebyshev
: ineq.
|
