# Combinatorics - problems

- Lathe

95% of the components manufactured on the lathe comply with the standard, of which 80% of the components are first-class. How likely can we expect a manufactured part to be first class? - Menu

On the menu are 12 kinds of meal. How many ways can we choose four different meals into the daily menu? - Probability of intersection

Three students have a probability of 0.7,0.5 and 0.4 to graduated from university respectively. What is the probability that at least one of them will be graduated? - A jackpot

How many times must I play this jackpot to win? A jackpot of seven games having (1 X 2), i. E. , home win or away win. - Rectangle

In rectangle with sides 10 and 8 mark the diagonal. What is the probability that a randomly selected point within the rectangle is closer to the diagonal than to any side of the rectangle? - No. of divisors

How many different divisors has number ?? - 7 heroes

9 heroes galloping on 9 horses behind. How many ways can sort them behind? - Ace

From complete sets of playing cards (32 cards) we pulled out one card. What is the probability of pulling the ace? - Flags

How many different flags can be made from colors white, red, green, purple, orange, yellow, blue so that each flag consisted of three different colors? - Vans

In how many ways can 9 shuttle vans line up at the airport? - Seating

How many ways can 7 people sit on 3 numbered chairs (eg seat reservation on the train)? - Pediatrician

Pediatrician this month of 19 working days takes 3 days holidays. What is the probability that on Monday will be at work? - Guests

How many ways can 5 guests sit down on 6 seats standing in a row? - Bureau of Labor

Bureau of Labor is a state institution that provides mike and the rest for their so-called clients. The mission of the Bureau of Labor is spend taxpayer money to provide relaxation and benefits to those who do not want to work. Popularly speaking sense the - Word

What is the probability that a random word composed of chars T, H, A, M will be MATH? - 2nd class variations

From how many elements you can create 6972 variations of the second class? - Shelf

How many ways are there to arrange 6 books on a shelf? - Chocolates

In the market have 4 kinds of chocolates. How many ways can we buy 19 chocolates? - Phone numbers

How many 7-digit telephone numbers can be compiled from the digits 0,1,2,..,8,9 that no digit is repeated? - Two doctors

Doctor A will determine the correct diagnosis with a probability 86% and doctor B with a probability 86%. Calculate probability of correct diagnosis if patient is diagnosed by both doctors.

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