Question

Inclusion-Exclusion Principle with Summations and combinations

score 232 · Answer 1 · 2026-02-23 13:43:00

232

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Inclusion-Exclusion Principle with Summations and combinations

Published on 23 Feb 2026 - 13:43

score 40 · Answer 2 · 2026-02-23 13:45:53

40

Views

How long on average will it take to get every option in a set of 73 at 4 random options per day

Published on 23 Feb 2026 - 13:45

score 55 · Answer 3 · 2026-02-23 13:46:13

55

Views

Why is $\sum_{i=1}^n\frac n{n-i+1}=n\sum_{i=1}^n\frac1i$?

Published on 23 Feb 2026 - 13:46

score 60 · Answer 4 · 2026-02-23 13:42:57

60

Views

With $50$ options, what is the average random chooses until are a used

Published on 23 Feb 2026 - 13:42

score 390 · Answer 5 · 2026-02-23 13:46:15

390

Views

What is the expected number of rolls until outcomes 1 and 2 are both observed on a dice?

Published on 23 Feb 2026 - 13:46

score 302 · Answer 6 · 2026-02-23 13:46:13

302

Views

Expected Value of the number of letters we need to draw from the alphabet

Published on 23 Feb 2026 - 13:46

score 36 · Answer 7 · 2026-02-23 13:42:43

36

Views

Permutation: how many random permutations needed to have every possible values in every possible places

Published on 23 Feb 2026 - 13:42

score 31 · Answer 8 · 2026-02-23 13:44:37

31

Views

Probability of Sampling All Members of a Subset At Least Once with Repeated, Without-Replacement Sampling

Published on 23 Feb 2026 - 13:44

score 55 · Answer 9 · 2026-02-23 13:46:23

55

Views

Find the expected value of tickets that the player should buy, in order to get a super prize.

Published on 23 Feb 2026 - 13:46

score 498 · Answer 10 · 2026-02-23 13:42:41

498

Views

Balls in bins with limited capacity

Published on 23 Feb 2026 - 13:42

score 209 · Answer 11 · 2026-02-23 13:45:55

209

Views

How many dice to get one of each of the 6 faces?

Published on 23 Feb 2026 - 13:45

score 53 · Answer 12 · 2026-02-23 13:42:41

53

Views

Variant of coupon collector's problem

Published on 23 Feb 2026 - 13:42

score 102 · Answer 13 · 2026-02-23 13:40:57

102

Views

A Coupon's collector look a like problem

Published on 23 Feb 2026 - 13:40

score 52 · Answer 14 · 2026-02-23 13:45:54

52

Views

What is the probability of getting one of each 10 different figures if we bought 25 pack?

Published on 23 Feb 2026 - 13:45

score 33 · Answer 15 · 2026-02-23 13:40:31

33

Views

Coupon problem from Ross' Probability Models

Published on 23 Feb 2026 - 13:40

List Question

Inclusion-Exclusion Principle with Summations and combinations

How long on average will it take to get every option in a set of 73 at 4 random options per day

Why is $\sum_{i=1}^n\frac n{n-i+1}=n\sum_{i=1}^n\frac1i$?

With $50$ options, what is the average random chooses until are a used

What is the expected number of rolls until outcomes 1 and 2 are both observed on a dice?

Expected Value of the number of letters we need to draw from the alphabet

Permutation: how many random permutations needed to have every possible values in every possible places

Probability of Sampling All Members of a Subset At Least Once with Repeated, Without-Replacement Sampling

Find the expected value of tickets that the player should buy, in order to get a super prize.

Balls in bins with limited capacity

How many dice to get one of each of the 6 faces?

Variant of coupon collector's problem

A Coupon's collector look a like problem

What is the probability of getting one of each 10 different figures if we bought 25 pack?

Coupon problem from Ross' Probability Models

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