Skip to main content

Timeline for PMF of $aX_1 + bX_2$ (Bernoulli)

Current License: CC BY-SA 4.0

14 events
when toggle format what by license comment
Oct 12, 2020 at 23:48 vote accept displayname
Oct 12, 2020 at 23:48 answer added displayname timeline score: 1
Oct 11, 2020 at 2:10 comment added kjetil b halvorsen You can also selfanswer so the post does not linger on as unanswered!
Oct 10, 2020 at 20:33 comment added displayname I guess I was really not concentrated, I solved it. I will then accept any answer confirming my result :)
Oct 10, 2020 at 20:23 history edited displayname CC BY-SA 4.0
deleted 3 characters in body
Oct 10, 2020 at 20:15 history edited displayname CC BY-SA 4.0
added 41 characters in body
Oct 10, 2020 at 19:35 comment added whuber Keep checking the calculation: your probabilities sum to more than $1.$ Creating a table (there are only four possibilities) is a helpful way to keep track of things.
Oct 10, 2020 at 19:22 history edited displayname CC BY-SA 4.0
edited title
Oct 10, 2020 at 19:17 comment added displayname okay thank you I almost got it, I edited my question
Oct 10, 2020 at 19:15 history edited displayname CC BY-SA 4.0
improved computations
Oct 10, 2020 at 18:06 history edited displayname CC BY-SA 4.0
simplified question
Oct 10, 2020 at 17:28 history edited develarist CC BY-SA 4.0
edited title
Oct 10, 2020 at 17:23 comment added whuber Check your computation of $\Pr(Z=a)$ etc. Your statement about the "convolution" makes little sense because its meaning changes according to the signs and magnitudes of $a$ and $b.$
Oct 10, 2020 at 17:05 history asked displayname CC BY-SA 4.0