Confusion with simple probability concepts
$begingroup$
There is a problem which goes, there are 6 red balls and $4$ green balls and a sample of $7$ balls are chosen.
Show that the probability such that all the balls chosen are red.
My answer is $0$, because there are only $6$ red balls, how can we choose $7$ sample balls when there are only $6$ red balls?
Is this correct?
probability
asked Dec 14 '18 at 3:47
Aurora BorealisAurora Borealis
866414
$endgroup$
add a comment |
$begingroup$
There is a problem which goes, there are 6 red balls and $4$ green balls and a sample of $7$ balls are chosen.
Show that the probability such that all the balls chosen are red.
My answer is $0$, because there are only $6$ red balls, how can we choose $7$ sample balls when there are only $6$ red balls?
Is this correct?
probability
asked Dec 14 '18 at 3:47
Aurora BorealisAurora Borealis
866414
$endgroup$
$begingroup$
With replacement or without?
$endgroup$
– Did
Jan 7 at 15:18
$begingroup$
"Show that the probability such that all the balls chosen are red." That should read "Find the probability that all the balls chosen are red. "
$endgroup$
– zhw.
Jan 7 at 23:44
add a comment |
$begingroup$
There is a problem which goes, there are 6 red balls and $4$ green balls and a sample of $7$ balls are chosen.
Show that the probability such that all the balls chosen are red.
My answer is $0$, because there are only $6$ red balls, how can we choose $7$ sample balls when there are only $6$ red balls?
Is this correct?
probability
asked Dec 14 '18 at 3:47
Aurora BorealisAurora Borealis
866414
$endgroup$
There is a problem which goes, there are 6 red balls and $4$ green balls and a sample of $7$ balls are chosen.
Show that the probability such that all the balls chosen are red.
My answer is $0$, because there are only $6$ red balls, how can we choose $7$ sample balls when there are only $6$ red balls?
Is this correct?
probability
probability
asked Dec 14 '18 at 3:47
Aurora BorealisAurora Borealis
866414
asked Dec 14 '18 at 3:47
Aurora BorealisAurora Borealis
866414
asked Dec 14 '18 at 3:47
Aurora BorealisAurora Borealis
866414
asked Dec 14 '18 at 3:47
Aurora BorealisAurora Borealis
866414
asked Dec 14 '18 at 3:47
Aurora BorealisAurora Borealis
866414
866414
$begingroup$
With replacement or without?
$endgroup$
– Did
Jan 7 at 15:18
$begingroup$
"Show that the probability such that all the balls chosen are red." That should read "Find the probability that all the balls chosen are red. "
$endgroup$
– zhw.
Jan 7 at 23:44
add a comment |
$begingroup$
With replacement or without?
$endgroup$
– Did
Jan 7 at 15:18
$begingroup$
"Show that the probability such that all the balls chosen are red." That should read "Find the probability that all the balls chosen are red. "
$endgroup$
– zhw.
Jan 7 at 23:44
$begingroup$
With replacement or without?
$endgroup$
– Did
Jan 7 at 15:18
$begingroup$
With replacement or without?
$endgroup$
– Did
Jan 7 at 15:18
$begingroup$
"Show that the probability such that all the balls chosen are red." That should read "Find the probability that all the balls chosen are red. "
$endgroup$
– zhw.
Jan 7 at 23:44
$begingroup$
"Show that the probability such that all the balls chosen are red." That should read "Find the probability that all the balls chosen are red. "
$endgroup$
– zhw.
Jan 7 at 23:44
add a comment |
1 Answer
1
active
oldest
votes
$begingroup$
Yup, that's correct. Since it's impossible for all $7$ balls to be red - because there aren't $7$ or more red balls to begin with - the probability of that would be $0$.
answered Dec 14 '18 at 3:50
Eevee TrainerEevee Trainer
10.2k31742
$endgroup$
$begingroup$
Thank you I guess I was just over thinking this.
$endgroup$
– Aurora Borealis
Dec 14 '18 at 3:50
$begingroup$
lol that's perfectly normal, I'm the same way with probability. But at least it shows you're thinking about the material, which is a good thing. :P
$endgroup$
– Eevee Trainer
Dec 14 '18 at 3:54
add a comment |
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%2f3038917%2fconfusion-with-simple-probability-concepts%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
$begingroup$
Yup, that's correct. Since it's impossible for all $7$ balls to be red - because there aren't $7$ or more red balls to begin with - the probability of that would be $0$.
answered Dec 14 '18 at 3:50
Eevee TrainerEevee Trainer
10.2k31742
$endgroup$
$begingroup$
Thank you I guess I was just over thinking this.
$endgroup$
– Aurora Borealis
Dec 14 '18 at 3:50
$begingroup$
lol that's perfectly normal, I'm the same way with probability. But at least it shows you're thinking about the material, which is a good thing. :P
$endgroup$
– Eevee Trainer
Dec 14 '18 at 3:54
add a comment |
$begingroup$
Yup, that's correct. Since it's impossible for all $7$ balls to be red - because there aren't $7$ or more red balls to begin with - the probability of that would be $0$.
answered Dec 14 '18 at 3:50
Eevee TrainerEevee Trainer
10.2k31742
$endgroup$
$begingroup$
Thank you I guess I was just over thinking this.
$endgroup$
– Aurora Borealis
Dec 14 '18 at 3:50
$begingroup$
lol that's perfectly normal, I'm the same way with probability. But at least it shows you're thinking about the material, which is a good thing. :P
$endgroup$
– Eevee Trainer
Dec 14 '18 at 3:54
add a comment |
$begingroup$
Yup, that's correct. Since it's impossible for all $7$ balls to be red - because there aren't $7$ or more red balls to begin with - the probability of that would be $0$.
answered Dec 14 '18 at 3:50
Eevee TrainerEevee Trainer
10.2k31742
$endgroup$
Yup, that's correct. Since it's impossible for all $7$ balls to be red - because there aren't $7$ or more red balls to begin with - the probability of that would be $0$.
answered Dec 14 '18 at 3:50
Eevee TrainerEevee Trainer
10.2k31742
answered Dec 14 '18 at 3:50
Eevee TrainerEevee Trainer
10.2k31742
answered Dec 14 '18 at 3:50
Eevee TrainerEevee Trainer
10.2k31742
answered Dec 14 '18 at 3:50
Eevee TrainerEevee Trainer
10.2k31742
10.2k31742
$begingroup$
Thank you I guess I was just over thinking this.
$endgroup$
– Aurora Borealis
Dec 14 '18 at 3:50
$begingroup$
lol that's perfectly normal, I'm the same way with probability. But at least it shows you're thinking about the material, which is a good thing. :P
$endgroup$
– Eevee Trainer
Dec 14 '18 at 3:54
add a comment |
$begingroup$
Thank you I guess I was just over thinking this.
$endgroup$
– Aurora Borealis
Dec 14 '18 at 3:50
$begingroup$
lol that's perfectly normal, I'm the same way with probability. But at least it shows you're thinking about the material, which is a good thing. :P
$endgroup$
– Eevee Trainer
Dec 14 '18 at 3:54
$begingroup$
Thank you I guess I was just over thinking this.
$endgroup$
– Aurora Borealis
Dec 14 '18 at 3:50
$begingroup$
Thank you I guess I was just over thinking this.
$endgroup$
– Aurora Borealis
Dec 14 '18 at 3:50
$begingroup$
lol that's perfectly normal, I'm the same way with probability. But at least it shows you're thinking about the material, which is a good thing. :P
$endgroup$
– Eevee Trainer
Dec 14 '18 at 3:54
$begingroup$
lol that's perfectly normal, I'm the same way with probability. But at least it shows you're thinking about the material, which is a good thing. :P
$endgroup$
– Eevee Trainer
Dec 14 '18 at 3:54
add a comment |
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%2f3038917%2fconfusion-with-simple-probability-concepts%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
$begingroup$
With replacement or without?
$endgroup$
– Did
Jan 7 at 15:18
$begingroup$
"Show that the probability such that all the balls chosen are red." That should read "Find the probability that all the balls chosen are red. "
$endgroup$
– zhw.
Jan 7 at 23:44