Question

using the probabilty distribution table what is the value of p(x=4 or x=1)?

x 0 1 2 3 4 5
p 0.3 00.5 0.1 0.15 0.15 0.25

p(x=4 or x=1)=1

Answer 1

0.5+0.15

Answer 2

the probability of a given random variable, is: x p(x)

Answer 3

but then, it seems like your table is a little off ... since the sum of: x P(x) is not 1, but 3.

Answer 4

wait so it 0.65 the answer or

Answer 5

\[\begin{array}{c|cccccc}
x&0&1&2&3&4&5&\\
\hline
p(x)&0.3&\color{red}{0.05}&0.1&0.15&0.15&0.25
\end{array}\]
@amistre64 For any probability distribution, we have to have \(\sum\limits_{x}p(x)=1\), not the sum of \(xp(x)\) (you're thinking of expected value, which need not be 1).

And yeah, it's 0.65.