Search Results
Search type | Search syntax |
---|---|
Tags | [tag] |
Exact | "words here" |
Author |
user:1234 user:me (yours) |
Score |
score:3 (3+) score:0 (none) |
Answers |
answers:3 (3+) answers:0 (none) isaccepted:yes hasaccepted:no inquestion:1234 |
Views | views:250 |
Code | code:"if (foo != bar)" |
Sections |
title:apples body:"apples oranges" |
URL | url:"*.example.com" |
Saves | in:saves |
Status |
closed:yes duplicate:no migrated:no wiki:no |
Types |
is:question is:answer |
Exclude |
-[tag] -apples |
For more details on advanced search visit our help page |
The expected value of a random variable is a weighted average of all possible values a random variable can take on, with the weights equal to the probability of taking on that value.
1
vote
1
answer
80
views
Calculate expected survival time for two stage survival
In a book about Biostatistics, I found this example to calculate expected value:
Consider the following hypothetical example of a lung cancer study in which all patients start in phase 1, transition …
4
votes
Provide an intuitive example of the linearity of expectation
Sticking to your example, here's an intuitive way to understand the linearity of expectation (at least to me):
Consider the $i$th-consecutive pair in the sequence of 9 cards of two different colors, 4 …