Probability of putting wrong letters in envelopes
3560
In how many ways can $10$ letters be placed in $10$ addressed envelope such that exactly $9$ letters are in correct envelope?
147428
Probability of picking an odd number from the set of naturals?
50179
Probability of two people meeting
11876
Probability of complete coupon set in $K$ boxes where a box has $N$ distinct coupons?
97343
Broken stick probability problem
121753
probability that there is at least one defective part
153168
Probability that two sets are disjoint? the same?
28508
What's the General Expression For Probability of a Failed Gift Exchange Draw
108240
Probability: marbles in bag question
53960
birthday problem - expected number of collisions
156260
Probability problem about the rain
103100
message plus response probability problem
136188
Drawing balls with replacement - Probability
18489
How can I determine accuracy of past probability calculations?
96478
probability that a candidate comes with all $3$ pens having the same colour is $?$
150178
Domino Probability Problem
33721
Probability problem, MIT and Harvard