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Counting and Combinatorics
Page 2
Questions (68)
Laura’s pet bunny, Ghost, hops up a flight of 12 stairs. Ghost can hop up one or two steps at a time, and never hops down. How
2 answers
asked by
kathy
665 views
How many outcomes are there for rolling a number cube with faces numbered 1 through 6 and flipping 2 quarters?
2 answers
asked by
Terrell Styles
610 views
You have 10 boxes and 44 marbles. Is it possible to put all of your marbles in the boxes in such a way that each box contains a
3 answers
asked by
Linda
618 views
The numbers 1,2,…,17 are divided into 5 disjoint sets. One set has 5 elements, one set has 4 elements, two sets have 3
5 answers
asked by
Anonymous1
613 views
How many positive integers less than 1000 are there which contain at least one 4 or at least one 9 (or both)?
2 answers
asked by
s17
579 views
Compute the number of eleven-digit integers that can be formed using all of seven 1s and four 0s if you never start of end with
2 answers
asked by
Joe
545 views
In how many ways can 7 basketball players of different heights line up in a single row so that no player is standing between 2
2 answers
asked by
joe
559 views
How many 4-digit numbers can be formed using the numbers 5, 6, 7 and 8? How many of the 4-digit numbers are less than 7000?
3 answers
asked by
jeff
535 views
How many six digit numbers greater than 700 000 can be made from the digits 2, 2, 4, 4, 4, 7?
A. 10 B. 60 C. 64 D. 120
2 answers
asked by
steve
554 views
Solve the problem - How many three digit numbers do not contain a five? Show evidence of solving the problem in a systematic
2 answers
asked by
Jo
500 views
If the sample space for an experiment contains the odd numbers from 1 to 20, how many outcomes will be included in the event
1 answer
asked anonymously
28 views
How many positive four-digit integers have 3 as their hundreds digit and 5 or 9 as their ones digit?
1 answer
asked by
Lacie
456 views
If you roll a six-sided die times, how many possible outcomes are there?
4 answers
asked by
Madi
467 views
How many possible numbers are between 1 and 1000000000 that are greater than 72000 if we only use the following digits (4, 5, 6,
1 answer
asked by
Louis
441 views
In an used book store, there are some different mystery novels on a shelf. Suppose there are 64 different ways to buy these
1 answer
asked by
Cindy
447 views
find the probability of at least one 3 in 4 rolls of a fair die. round to three decimals places
1 answer
asked anonymously
29 views
A spinner has 8 equally sized sections labeled as A, B, C, D, E, F, G, H. In 160 spins, how many times can you expect the
1 answer
asked anonymously
30 views
Avery randomly selects 50 colored pencils from a basket and finds that 2 are not sharpened. If the basket contains 300 colored
1 answer
asked by
wha
4 views
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Parent Categories (9)
Discrete Probability
Math
Math and Statistics
Mathematical Problems
Mathematics
Number Theory
Probability
Probability and Statistics
Problem Solving