suppose x has a binomial b (2, 0.5) distribution. calculate f x ( t ) for any t .

Question

anonymous · Answer

Do you mean $f_x(t)$? And if so, what does that mean? PDF? CDF?

anonymous · Answer

yes, i meant that
i don't know what do you mean by pdf, cdf

anonymous · Answer

"PDF" stands for "probability density function" (which is also known as a mass function). This tells you the probability that a random variable with a given distribution takes on a certain value.

"CDF" refers to the "cumulative distribution function." So where the PDF tells you the probability, like $P(X=k)$ (i.e. the random variable $X$ takes on the value $k$), the CDF tells you teh value of $P(X\le k)$ i.e. all the probabilities up to $X$ taking on $k$).

anonymous · Answer

Generally, $f_x$ refers to the PDF of a random variable $X$.

anonymous · Answer

Thanks for these information!