Question

Urn with three kinds of elements: $2n$ independent trials

score 45 · Answer 1 · 2026-04-11 15:27:22

45

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Urn with three kinds of elements: $2n$ independent trials

Published on 11 Apr 2026 - 15:27

score 785 · Answer 2 · 2018-05-16 09:26:59

785

Views

Ternary strings with each element occurring at least once

Published on 16 May 2018 - 9:26

score 246 · Answer 3 · 2026-03-25 06:07:02

246

Views

Are there Venn diagrams made of convex shapes for more than 6 sets?

Published on 25 Mar 2026 - 6:07

score 48 · Answer 4 · 2026-04-09 03:39:18

48

Views

How many different strings of length $100$ may be composed of $10$ different $10$ position binary numbers?

Published on 09 Apr 2026 - 3:39

score 87 · Answer 5 · 2026-04-11 19:53:17

87

Views

How many ways can dominoes cover a $2 \times n$ rectangle? Justify proposed solution.

Published on 11 Apr 2026 - 19:53

score 138 · Answer 6 · 2026-03-26 01:12:41

138

Views

The number of partitions of a set of size $28$ into $7$ disjoint subsets of size $4$

Published on 26 Mar 2026 - 1:12

score 373 · Answer 7 · 2018-05-16 14:25:03

Counting the number of ways a test can be answered where at least one T/F and at least one multiple choice question must be answered

score 45 · Answer 8 · 2026-04-11 20:16:03

45

Views

Probability of intersection of sparse vectors

Published on 11 Apr 2026 - 20:16

score 681 · Answer 9 · 2026-04-12 03:55:55

681

Views

How to combine multiple indices?

Published on 12 Apr 2026 - 3:55

score 41 · Answer 10 · 2018-05-16 16:02:54

41

Views

Establish necessary and sufficient condition for specific matrix color configuration

Published on 16 May 2018 - 16:02

score 320 · Answer 11 · 2026-04-03 19:14:18

320

Views

Number of simultaneously solvable linear equations with nonnegative variables

Published on 03 Apr 2026 - 19:14

score 40 · Answer 12 · 2026-03-25 14:23:45

40

Views

Number of $\{0,1\}$ vectors with given runs

Published on 25 Mar 2026 - 14:23

score 670 · Answer 13 · 2018-05-16 19:12:07

How many 6-digit numbers can be formed using {1, 2, . . . , 9} with no repetitions such that 1 and 2 do not occur in consecutive positions?

score 68 · Answer 14 · 2026-04-11 18:14:29

68

Views

Forming n disjoint sets based on limited (but very useful) information.

Published on 11 Apr 2026 - 18:14

score 1.2k · Answer 15 · 2026-04-11 19:53:07

1.2k

Views

How many visions does Dr. Strange need?

Published on 11 Apr 2026 - 19:53

List Question

Urn with three kinds of elements: $2n$ independent trials

Ternary strings with each element occurring at least once

Are there Venn diagrams made of convex shapes for more than 6 sets?

How many different strings of length $100$ may be composed of $10$ different $10$ position binary numbers?

How many ways can dominoes cover a $2 \times n$ rectangle? Justify proposed solution.

The number of partitions of a set of size $28$ into $7$ disjoint subsets of size $4$

Counting the number of ways a test can be answered where at least one T/F and at least one multiple choice question must be answered

Probability of intersection of sparse vectors

How to combine multiple indices?

Establish necessary and sufficient condition for specific matrix color configuration

Number of simultaneously solvable linear equations with nonnegative variables

Number of $\{0,1\}$ vectors with given runs

How many 6-digit numbers can be formed using {1, 2, . . . , 9} with no repetitions such that 1 and 2 do not occur in consecutive positions?

Forming n disjoint sets based on limited (but very useful) information.

How many visions does Dr. Strange need?

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