Mathematics 31 Online
OpenStudy (anonymous):

Let a random variable be given by its distribution X 3 0 1 4 p .1 .1 .5 .3 Find the distribution function and draw its graph

OpenStudy (anonymous):

random variable X

OpenStudy (amistre64):

would that just be the histogram of the freq distribution?

OpenStudy (anonymous):

in fact i think the graph is just 4 vertical lines. the distribution function is $P(X=3)=.1,P(x=0)=.1,P(X=1)=.5,P(X=4)=.3$

OpenStudy (anonymous):

i do not understand the graph as it is written

OpenStudy (anonymous):

i think that it is the histogram for the frequency distribution

OpenStudy (amistre64):

$\begin{array}c x\\--&-&--&--&--&--&--&-\\ .6&|&&&&&&|\\ .5&|&&-&&&&|\\ .4&|&&-&&&&|\\ .3&|&&-&&&-&|\\ .2&|&&-&&&-&|\\ .1&|&-&-&&-&-&|\\ --&-&--&--&--&--&--& |\\ &&0&1&2&3&4&|&P(x) \end{array}$

OpenStudy (anonymous):

ok i understand now. I thought that there was a specific equation that had to be written

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