3. Among the products of the first company, defective is 10%, the second - 20%, thethird - 25%. We bought 6 products from the first company, 8 from the second and 4from the third. For verification, one product was tested. Find the probability that itis valid.

Let B1, B2, ... , Bn be n mutually exclusive and exhaustive events with P(Bi) > 0 for all i = 1,…

Answered: 3. Among the products of the first…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

See similar textbooks

Similar questions

An container has 12 blue and 18 red marbles and 20 yellow marbles. 16. What is the probability that you have chosen 2 yellow marbles with replacement? What is the probability you will pull out 3 red marbles if you do not replace a 18. What is the probability you will pull out a blue marble, then a red marble, then a yellow marble if you don't replace any? dec dec dec % %
Connor is an oncologist with 7 patients in their care. The probability that a patient will survive 5 years after being diagnosed with stage 2 pancreatic cancer is 0.34. What is the probability that 7 of the patients are still alive after 5 years?
A sculpted needs to make 3 wood sculptures to exhibit at an art gallery. There is a probability of 0.80 that every piece of wood he carved will be good enough to be a part of the exhibit. What is the probability that he needs to carve 5 or less pieces of wood in order to produce 3 good wood sculptures for the art gallery?
There are 5 red eggs and 9 green eggs in a tank. Grogu reaches in and randomly eats 3 eggs. What is the probability that he eats 2 red eggs?
A lock consists of 3 dials, where each dial has 4 letters. What is the probability of guessing the right combination in one try? Kay has an 80% probability of making a free-throw in basketball, and each free-throw is independent. Kay gets to take 2 free-throws and must make both to win the game. What is the probability that Kay's team will win the game? Two owners of a cattle ranch, Jo and Val, want to find the average weight for the ranch’s 200 cows. Instead of weighing all of the cows: Jo weighs 25 cows and gets an average weight of 1,350 pounds (stdev 50) Val weighs 100 cows and gets an average weight of 1,420 pounds (stdev 50) What is Jo’s margin of error, rounded to the nearest whole number? (The formula is )
A teacher will pick 1 student at random from 20 for the lead in a play. What is the probability of a student, Jo, of winning?

Recommended textbooks for you

A First Course in Probability (10th Edition)

Probability

ISBN:

9780134753119

Author:

Sheldon Ross

Publisher:

PEARSON

A First Course in Probability

Probability

ISBN:

9780321794772

Author:

Sheldon Ross

Publisher:

PEARSON

A First Course in Probability (10th Edition)

Probability

ISBN:

9780134753119

Author:

Sheldon Ross

Publisher:

PEARSON

A First Course in Probability

Probability

ISBN:

9780321794772

Author:

Sheldon Ross

Publisher:

PEARSON

SEE MORE TEXTBOOKS

3. Among the products of the first company, defective is 10%, the second - 20%, the third - 25%. We bought 6 products from the first company, 8 from the second and from the third. For verification, one product was tested. Find the probability that it is valid.