What is the expected number of occurrences of a 9-mer in 500 random DNA strings, each of length 1000?
48119
Probability of finding a particular sequence of base pairs
142477
Closed-form expression for the number of $k$-permutations of length $n$. Duplicates allowed!
34595
Generating non-repeating random numbers
80744
What is the number of strings at size $n$ that is constructed from ${a,b,c,d}$ and there is an even num of $a$
62175
A general formula for $n$ distinguishable arrangements of length $\ell$ of a sequence of a given size?
122654
How to randomize the output from seq?
2085
How would you count occurrences of a string (actually a char) within a string?
87880
Testing random number generation
132118
Computing the $n^{\textrm{th}}$ permutation of bits.
82208
Finding n using central limit theorem
154445
balanced Shortest[] and string-patterns
35437
Does DNA have the equivalent of IF-statements, WHILE loops, or function calls? How about GOTO?
136349
Does an infinite random sequence contain all finite sequences?
62371
Expected number of times a set of 10 integers (selected from 1-100) is selected before all 100 are seen
15239
Probability that a sequence repeats itself
68507
Random number generation and probability
17371
Recurrence relation for number of ternary strings that contain two consecutive zeros