Question

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

Answer 1

random variable X

Answer 2

would that just be the histogram of the freq distribution?

Answer 3

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

Answer 4

i do not understand the graph as it is written

Answer 5

i think that it is the histogram for the frequency distribution

Answer 6

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

Answer 7

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