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seen Jul 17 at 20:03

Jul
17
accepted Definition of “quotient set”
Jun
19
comment Normal distribution of t
@Ragnar the total population(10000) the average($\mu$) is 50.03385, and the average from the sampling that i made(i took 10 from 10000) is 70.32416. yes, its correct, i checked using excel.
Jun
19
asked Normal distribution of t
Jun
19
suggested suggested edit on T student distribution
Jun
18
comment (correction)Sampling distribution homework
i dont know if i found correctly, based on bernoulli distribution i find the variance = 0,21 and the mean = 0,3, on binomial distribution looking on the histogram and calculatin the mean = 1,5 and variance = 1,05. Which one is correctly?
Jun
18
comment (correction)Sampling distribution homework
in the question is MSE($\bar{X},\mu$), so, MSE = E($\bar{X} - \mu)^2)$
Jun
18
comment (correction)Sampling distribution homework
and to know the squared mean error?
Jun
18
accepted (correction)Sampling distribution homework
Jun
18
revised (correction)Sampling distribution homework
edited title
Jun
18
asked (correction)Sampling distribution homework
Jun
18
accepted Sampling distribution of a Random Variable
Jun
15
comment Sampling distribution of a Random Variable
the exercise ask me to build an histogram too, to find each P(T=k), the max value of K will reach is 5? i'm assuming this based on composition, the max value that it can reaches is 1.
Jun
15
revised Sampling distribution of a Random Variable
added 30 characters in body
Jun
15
comment Sampling distribution of a Random Variable
I think there are no problems with english, its about the matter in question. I cant figure out properly what is the sampling distribution, how to figure out this. You showed me the Expectation of $bar(x)$, but i'm still confused.
Jun
15
revised Sampling distribution of a Random Variable
added 125 characters in body
Jun
15
comment Sampling distribution of a Random Variable
on my question, taking E[T] = 0.83, $\bar{X} = 0.83$ ? Only to clarify, the sampling distribution is mean, variance and standard deviation?
Jun
15
comment Sampling distribution of a Random Variable
but to find the mean, i should have xi, or i shouldnt? How can i find it?
Jun
15
asked Sampling distribution of a Random Variable
Dec
7
comment identity and inverse elements from a group
So, i was thiking better, the inverse is 1/(a,b) = (1/a, 1/b). (a,b)*(1/a, 1/b) = 1 -> a*1/a = 1 | b*1/b = 1 -> (1,1). (a,b)*(j,k) = (1,1) where (j,k) is any inverse, so its the only way to achieve (1,1).
Dec
7
comment identity and inverse elements from a group
i was thinking better, why i can just consider (0,0) as the inverse?