 # Combinatorics: Examples, Equations, and Practice Problems

Recent questions in Probability and combinatorics temujinzujb 2023-03-25

## Find the probability of getting 5 Mondays in the month of february in a leap year. Waylon Bruce 2023-03-22

## What does likely mean in probability? criosachuga 2023-03-13

## The probability of certain event is: A)1/2 B)1/3 C)1/6 D)1 Leo Downs 2023-03-13

## " Compound interest on ₹ 18,000 for $2\frac{1}{2}$ years at 10% per annum, compounded annually is A) ₹ 4,900B) ₹ 4,749C) ₹ 4,869D) ₹ 4,722" uelhonai3 2023-03-07

## In a family of 3 children, find the probability of having at least one boy. Dylan Chandler 2023-03-06

## If $A$ and $B$ are two independent events such that $P\left(B\right)=\frac{2}{7}$, $P\left(A\cup B\text{'}\right)=0.8$, then $P\left(A\right)$ is equal to... Rose Weaver 2023-02-25

## What is meant by F+V=E+2 ? Guadara0c2x 2023-02-25

## How many 3-digit numbers are there, with distinct digits, with each digit odd? Ravottidsvx 2023-02-21

## The possibility of something happening or not happening is called probability. True or False tisanurnr9c 2023-02-19

## A bag contains 5 red marbles and 3 black marbles. Three marbles are drawn one by one without replacement. What is the probability that atleast one of the three marbles drawn be black, if the first marble is red? fagiolinow8xk 2023-02-18

## What is the difference between at least one head and at most one head in probability? Gorjamskiw 2023-02-16

## Which equation represents the line that passes through the points (6,-3) and (-4,-9)? Maxim Padilla 2023-02-16

## What is the exact value of $\mathrm{sin}60-\mathrm{cos}60$? markezop78 2023-02-15

## Two cards are drawn successively with replacement from a pack of $52$ cards. The probability of drawing two aces is A$\frac{1}{169}$ B$\frac{1}{221}$ C$\frac{1}{2652}$ D$\frac{4}{663}$ Erica Lin 2023-02-13

## Why does probability have to be between $0$ and $1$? Brenton Marks 2023-02-13

## What is $c$ in the probability formula? deblima0gm 2023-02-10

## Sweet T noticed the ratio of long boards to short boards was 1:4. If there were 35 surfboards at the beach, how many were short boards? Seamus Livingston 2023-02-02

## A jar contains 10 red marbles, 5 blue marbles, and 15 yellow marbles. All marbles are of the same shape and size and are equally likely to get picked. Find the probability of drawing a blue marble and then drawing a yellow marble randomly. A. $\frac{15}{58}$ B. $\frac{5}{29}$ C. $\frac{5}{58}$ D. $\frac{15}{29}$ Sichilin5p 2023-01-30 meedipvf 2023-01-26