Expected value equals sum of probabilities
43861
Find the Mean for Non-Negative Integer-Valued Random Variable
20291
Probability of random variables converging
127311
Challenging probability problem
4064
An equality involving the mean value property
39958
Does the variance of a sum equal the sum of the variances?
29694
Expected Value of a Binomial distribution?
128856
Show the result of the following infinite sum, based on a binomial random variable conditioned on a Poisson random variable
91358
Conditional expectation of the sum of three dice rolls given the sum of their maximum and product
57024
What's wrong with this equal probability solution for Monty Hall Problem?
102267
Adding very small probabilities - How to compute?
121457
Probability of a Union
113911
Expected value of the largest element of a subset
140809
Expected value of sock pairs
82025
The Probability $P_{[m]}$ that exactly $m$ among the $N$ events $A_1,\dots,A_N$ occur simultaneously
123844
conditional expectation: an implication
31197
Expected value of product of dependent random variables
115955
Prove the Probability of Two Events