writing probability function mathematically (in the shape of $f(x)$}…}
$begingroup$
I am trying to write the following expression mathematically: let $X_1,X_2$ be independent random variables, each having the probability function $P_X(k)=p(1-p)^k$ for k=0,1,... and $0<p<1$.
Is it something like $forall X_1X_2 exists p_X(k)=p(1-p)^k|(k=0,1,2,..) land (0<p<1)$ ?
I would appreciate a correction and explanation, so I could not repeat the same mistake in the future.
Note: I did not define what is an independent random variable there; I just gave a general expression for random variables $X_1,X_2$. If you could, I would appreciate seeing how to write it with the definition of independence.
Thank you very much!
probability-theory logic conditional-probability
$endgroup$
add a comment |
$begingroup$
I am trying to write the following expression mathematically: let $X_1,X_2$ be independent random variables, each having the probability function $P_X(k)=p(1-p)^k$ for k=0,1,... and $0<p<1$.
Is it something like $forall X_1X_2 exists p_X(k)=p(1-p)^k|(k=0,1,2,..) land (0<p<1)$ ?
I would appreciate a correction and explanation, so I could not repeat the same mistake in the future.
Note: I did not define what is an independent random variable there; I just gave a general expression for random variables $X_1,X_2$. If you could, I would appreciate seeing how to write it with the definition of independence.
Thank you very much!
probability-theory logic conditional-probability
$endgroup$
$begingroup$
$X_1$ and $X_2$ are "fixed"; if so, we cannot quantify them.
$endgroup$
– Mauro ALLEGRANZA
Jan 28 at 14:40
1
$begingroup$
$P_X(k)$ must be (I think) $P_{X_i}(k)$ for $i=1,2$.
$endgroup$
– Mauro ALLEGRANZA
Jan 28 at 14:40
add a comment |
$begingroup$
I am trying to write the following expression mathematically: let $X_1,X_2$ be independent random variables, each having the probability function $P_X(k)=p(1-p)^k$ for k=0,1,... and $0<p<1$.
Is it something like $forall X_1X_2 exists p_X(k)=p(1-p)^k|(k=0,1,2,..) land (0<p<1)$ ?
I would appreciate a correction and explanation, so I could not repeat the same mistake in the future.
Note: I did not define what is an independent random variable there; I just gave a general expression for random variables $X_1,X_2$. If you could, I would appreciate seeing how to write it with the definition of independence.
Thank you very much!
probability-theory logic conditional-probability
$endgroup$
I am trying to write the following expression mathematically: let $X_1,X_2$ be independent random variables, each having the probability function $P_X(k)=p(1-p)^k$ for k=0,1,... and $0<p<1$.
Is it something like $forall X_1X_2 exists p_X(k)=p(1-p)^k|(k=0,1,2,..) land (0<p<1)$ ?
I would appreciate a correction and explanation, so I could not repeat the same mistake in the future.
Note: I did not define what is an independent random variable there; I just gave a general expression for random variables $X_1,X_2$. If you could, I would appreciate seeing how to write it with the definition of independence.
Thank you very much!
probability-theory logic conditional-probability
probability-theory logic conditional-probability
edited Jan 28 at 16:07
J. W. Tanner
4,0171320
4,0171320
asked Jan 28 at 14:34
q123q123
75
75
$begingroup$
$X_1$ and $X_2$ are "fixed"; if so, we cannot quantify them.
$endgroup$
– Mauro ALLEGRANZA
Jan 28 at 14:40
1
$begingroup$
$P_X(k)$ must be (I think) $P_{X_i}(k)$ for $i=1,2$.
$endgroup$
– Mauro ALLEGRANZA
Jan 28 at 14:40
add a comment |
$begingroup$
$X_1$ and $X_2$ are "fixed"; if so, we cannot quantify them.
$endgroup$
– Mauro ALLEGRANZA
Jan 28 at 14:40
1
$begingroup$
$P_X(k)$ must be (I think) $P_{X_i}(k)$ for $i=1,2$.
$endgroup$
– Mauro ALLEGRANZA
Jan 28 at 14:40
$begingroup$
$X_1$ and $X_2$ are "fixed"; if so, we cannot quantify them.
$endgroup$
– Mauro ALLEGRANZA
Jan 28 at 14:40
$begingroup$
$X_1$ and $X_2$ are "fixed"; if so, we cannot quantify them.
$endgroup$
– Mauro ALLEGRANZA
Jan 28 at 14:40
1
1
$begingroup$
$P_X(k)$ must be (I think) $P_{X_i}(k)$ for $i=1,2$.
$endgroup$
– Mauro ALLEGRANZA
Jan 28 at 14:40
$begingroup$
$P_X(k)$ must be (I think) $P_{X_i}(k)$ for $i=1,2$.
$endgroup$
– Mauro ALLEGRANZA
Jan 28 at 14:40
add a comment |
0
active
oldest
votes
Your Answer
StackExchange.ifUsing("editor", function () {
return StackExchange.using("mathjaxEditing", function () {
StackExchange.MarkdownEditor.creationCallbacks.add(function (editor, postfix) {
StackExchange.mathjaxEditing.prepareWmdForMathJax(editor, postfix, [["$", "$"], ["\\(","\\)"]]);
});
});
}, "mathjax-editing");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "69"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
noCode: true, onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f3090930%2fwriting-probability-function-mathematically-in-the-shape-of-fx%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
Thanks for contributing an answer to Mathematics Stack Exchange!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
Use MathJax to format equations. MathJax reference.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f3090930%2fwriting-probability-function-mathematically-in-the-shape-of-fx%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
$begingroup$
$X_1$ and $X_2$ are "fixed"; if so, we cannot quantify them.
$endgroup$
– Mauro ALLEGRANZA
Jan 28 at 14:40
1
$begingroup$
$P_X(k)$ must be (I think) $P_{X_i}(k)$ for $i=1,2$.
$endgroup$
– Mauro ALLEGRANZA
Jan 28 at 14:40