lamps‚ and 12.5% of the lamps are defective. What is the probability that a randomly selected lamp is defective and from factory B?

In a group of tourists‚ there are 5 men and 7 women. Three tourists are chosen by lot to go to the village for groceries. What is the probability that all three are men?

A box contains 4 white‚ 5 red‚ and 6 blue balls. Three balls are drawn at random. What is the probability that all three balls are of different colors?

Three dice are thrown. Find the probability that the sum of the points is 15.

The probability of hitting the target for each shot is 0.7. Find the probability that in 5 shots there will be at least 4 hits.

Two players flip a coin. If it lands heads‚ player A wins‚ if tails‚ player B wins. The first to win 3 games wins the match. What is the probability that the match ends in 5 games?

In a batch of 10 parts‚ 4 are defective. Three parts are selected at random. What is the probability that at least one of them is defective?

The probability of a defective part is 0.2. Find the probability that among 5 randomly selected parts‚ no more than 2 are defective.

9ber of the first kind‚ and the rest of the second kind. Three balls are drawn at random. What is the probability that two of them are of the first kind and one of the second kind?

Two dice are thrown. What is the probability that the sum of the points is not less than 9?

A box contains 6 white and 4 black balls. Two balls are drawn at random. What is the probability that both balls are white?

The probability of hitting the target with one shot is 0.8. Find the probability that in 4 shots the target will be hit at least 3 times.

Three players are playing. The probability of winning for the first player is 0.5‚ for the second ‒ 0.4‚ for the third ‒ 0.3. What is the probability that at least one of them wins?

In a group of 12 students‚ 8 are excellent students. Five students are chosen at random. What is the probability that at least 3 of them are excellent students?

A box contains 5 white and 3 black balls. Two balls are drawn at random. What is the probability that the balls are of different colors?
The probability of hitting the target with one shot is 0.6. Find the probability that in 5 shots there will be exactly 3 hits.

Two dice are thrown. What is the probability that the sum of the points is 7?

In a batch of 15 parts‚ 5 are defective. Four parts are selected at random. What is the probability that exactly 2 of them are defective?
A box contains 4 white‚ 5 red‚ and 6 blue balls. Three balls are drawn at random. What is the probability elective probability that all three balls are of the same color?

The probability of a defective part is 0.1. Find the probability that among 6 randomly selected parts‚ at least one is defective.

Three dice are thrown. Find the probability that the sum of the points is 10.

In a group of 10 students‚ 4 are excellent students. Three students are chosen at random. What is the probability that at least one of them is an excellent student?
A box contains 5 white and 4 black balls. Three balls are drawn at random. What is the probability that at least two of them are white?

The probability of hitting the target with one shot is 0.7. Find the probability that in 6 shots the target will be hit at least 5 times.

Two dice are thrown. What is the probability that the product of the points is 12?

In a batch of 20 parts‚ 6 are defective. Five parts are selected at random. What is the probability that at most 2 of them are defective?

A box contains 3 white‚ 4 red‚ and 5 blue balls. Three balls are drawn at random. What is the probability that all three balls are of different colors?

The probability of a defective part is 0.15. Find the probability that among 8 randomly selected parts‚ exactly 2 are defective.

Four dice are thrown. Find the probability that the sum of the points is 18.

In a group of 15 students‚ 6 are excellent students. Four students are chosen at random. What is the probability that exactly 2 of them are excellent students?

A box contains 6 white and 5 black balls. Four balls are drawn at random. What is the probability that at least three of them are white?

The probability of hitting the target with one shot is 0;9. Find the probability that in 7 shots there will be exactly 6 hits.

Two dice are thrown. What is the probability that the sum of the points is divisible by 4?

In a batch of 18 parts‚ 7 are defective. Six parts are selected at random. What is the probability that at least 4 of them are defective?

A box contains 4 white‚ 3 red‚ and 5 blue balls. Four balls are drawn at random. What is the probability that two of them are white and two are red?

The probability of a defective part is 0.25. Find the probability that among 10 randomly selected parts‚ no more than 3 are defective.

Three dice are thrown. Find the probability that the sum of the points is 12;
In a group of 20 students‚ 8 are excellent students. Five students are chosen at random. What is the probability that at most 3 of them are excellent students?

A box contains 7 white and 4 black balls. Five balls are drawn at random. What is the probability that at least four of them are white?

The probability of hitting the target with one shot is 0.75. Find the probability that in 8 shots there will be at least rat least 6 hits.

Two dice are thrown. What is the probability that the product of the points is divisible by 6?

In a batch of 25 parts‚ 9 are defective. Seven parts are selected at random. What is the probability that exactly 3 of them are defective?

A box contains 5 white‚ 4 red‚ and 3 blue balls. Four balls are drawn at random. What is the probability that all four balls are of different colors?

The probability of a defective part is 0.3. Find the probability that among 12 randomly selected parts‚ at least 4 are defective.

Four dice are thrown. Find the probability that the sum of the points is 20.

In a group of 30 students‚ 12 are excellent students. Six students are chosen at random. What is the probability that exactly 4 of them are excellent students?

A box contains 8 white and 6 black balls. Five balls are drawn at random. What is the probability that at most 2 of them are black?

The probability of hitting the target with one shot is 0.85. Find the probability that in 10 shots there will be exactly 8 hits.

Two dice are thrown. What is the probability that the sum of the points is a prime number?

In a batch of 40 parts‚ 15 are defective. Ten parts are selected at random. What is the probability that at least 5 of them are defective?

A box contains 6 white‚ 5 red‚ and 4 blue balls. Five balls are drawn at random. What is the probability that two of them are white‚ two are red‚ and one is blue?

The probability of a defective part is 0;2. Find the probability that among 15 randomly selected parts‚ no more than 5 are defective.

Three dice are thrown. Find the probability that the sum of the points is 14.

In a group of 50 students‚ 20 are excellent students. Eight students are chosen at random. What is the probability that at most 5 of them are excellent students?

A box contains 9 white and 7 black balls. Six balls are drawn at random. What is the probability that at least five of them are white?

The probability of hitting the target with one shot is 0.9. Find the probability that in 12 shots there will be at least 10 hits.

Two dice are thrown. What is the probability that the product of the points is a prime number?

In a batch of 60 parts‚ 25 are defective. Fifteen parts are selected at random. What is theiske probability that exactly 8 of them are defective?

A box contains 7 white‚ 6 red‚ and 5 blue balls. Six balls are drawn at random. What is the probability that three of them are white‚ two are red‚ and one is blue?
The probability of a defective part is 0.35. Find the probability that among 20 randomly selected parts‚ at least 7 are defective.

Four dice are thrown. Find the probability that the sum of the points is 22.

In a group of 100 students‚ 40 are excellent students. Ten students are chosen at random. What is the probability that exactly 5 of them are excellent students?

A box contains 10 white and 8 black balls. Seven balls are drawn at random. What is the probability that at most 3 of them are black?

The probability of hitting the target with one shot is 0.95. Find the probability that in 15 shots there will be exactly 14 hits.

Two dice are thrown. What is the probability that the sum of the points is divisible by 5?

In a batch of 80 parts‚ 30 are defective. Twenty parts are selected at random. What is the probability that at least 10 of them are defective?

A box contains 8 white‚ 7 red‚ and 6 blue balls. Seven balls are drawn at random. What is the probability that three of them are white‚ two are red‚ and two are blue?

The probability of a defective part is 0.4. Find the probability that among 25 randomly selected parts‚ no more than 10 are defective.

Three dice are thrown. Find the probability that the sum of the points is 16.

In a group of 200 students‚ 80 are excellent students. Fifteen students are chosen at random. What is the probability that at most 8 of them are excellent students?

A box contains 12 white and 10 black balls. Eight balls are drawn at random. What is the probability that at least six of them are white?

The probability of hitting the target with one shot is 0.8. Find the probability that in 20 shots there will be exactly 16 hits.

Two dice are thrown. What is the probability that the product of the points is divisible by 4?

In a batch of 100 parts‚ 40 are defective. Thirty parts are selected at random. What is the probability that exactly 15 of them are defective?

A box contains 9 white‚ 8 red‚ and 7 blue balls. Eight balls are drawn at random. What is the probability that four of them are white‚ three are red‚ and one is blue?

The probability of a defective part is 0.5. Find the probability that among 30 randomly selected parts‚ at least 15 are defective.

Four dice are thrown. Find the probability that the sum of the points is 24.

In a group of 500 students‚ 200 are excellent students. Twenty students are chosen at random. What is the probability that exactly 10 of them are excellent students?

A box contains 15 white and 12 black balls. Ten balls are drawn at random. What is the probability that at most 4 of them are black?

The probability of hitting the target with one shot is 0.7. Find the probability that in 25 shots there will be at least 18 hits.

Two dice are thrown. What is the probability that the sum of the points is divisible by 3?

In a batch of 200 parts‚ 80 are defective. Fifty parts are selected at random. What is the probability that at least 25 of them are defective?

A box contains 10 white‚ 9 red‚ and 8 blue balls. Nine balls are drawn at random. What is the probability that four of them are white‚ three are red‚ and two are blue?

The probability of a defective part is 0.6. Find the probability that among 40 randomly selected parts‚ no more than 20 are defective.

Three dice are thrown. Find the probability that the sum of the points is 18.

In a group of 1000 students‚ 400 are excellent students. Thirty students are chosen at random. What is the probability that at most 15 of them are excellent students?

A box contains 20 white and 15 black balls. Twelve balls are drawn at random. What is the probability that at least eight of them are white?

The probability of hitting the target with one shot is 0.75. Find the probability that in 30 shots there will be exactly 24 hits.

Two dice are thrown. What is the probability that the product of the points is divisible by 8?

In a batch of 500 parts‚ 200 are defective. One hundred parts are selected at random. What is the probability that exactly 50 of them are defective?

A box contains 12 white‚ 11 red‚ and 10 blue balls. Ten balls are drawn at random. What is the probability that five of them are white‚ three are red‚ and two are blue?

The probability of a defective part is 0.45. Find the probability that among 50 randomly selected parts‚ at least 25 are defective.

Four dice are thrown. Find the probability that the sum of the points is 4.

In a group of 2000 students‚ 800 are excellent students. Fifty students are chosen at random. What is the probability that exactly 25 of them are excellent students?

A box contains 25 white and 20 black balls. Fifteen balls are drawn at random. What is the probability that at most 6 of them are black?

The probability of hitting the target with one shot is 0.85. Find the probability that in 40 shots there will be at least 35 hits.

Two dice are thrown. What is the probability that the sum of the points is divisible by 7?

In a batch of 1000 parts‚ 400 are defective. Two hundred parts are selected at random. What is the probability that at least 100 of them are defective?

A box contains 15 white‚ 14 red‚ and 13 blue balls. Twelve balls are drawn at random. What is the probability that six of them are white‚ four are red‚ and two are blue?

The probability of a defective part is 0.55. Find the probability that among 100 randomly selected parts‚ no more than 60 are defective.