12. A bag contains 5 black and 7 white balls. A ball is drawn out of it and replacedbag. Then a ball is drawn again. What is the probability that (i) both the balls drawn were black,(ii) both were white, (iii) the first ball was white and the second black, (iv) the first ball was black andthe second white,Sappie

Answered: Image /qna-images/answer/42e14d94-3081-4ad0-834b-b5427085e10f.jpg

Answered: 12. A bag contains 5 black and 7 white…

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...

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Similar questions

You have 5 choices of shirts: Red, blue, green, yellow, brown; 3 choices of pants: Green, brown, black; 4 choices of socks: Black, brown, tan, white; 3 choices of shoes: White, brown, black. What is the probability that you will dress all in brown-shirt, pants, socks, and shoes?
There are 400 seniors in highschool, of which 180 are males. It is known that 85% of the males and 70% of the females have their driver's license. If a student is selected at random from this senior class, what is the probability that the student is: - A male and has a driver's license - A female and has a driver's license
In a hospital, there are 11 male patients in ICU, 7 female patients in ICU, 5 male patients in cardiology, 4 female patients in cardiology, 4 male patients in gastroenterology, and 4 female patients in gastroenterology. If a volunteer calls upon a patient to offer company, what is the probability that the patient will be male?
12. A bag contains 5 black and 7 white balls. A ball is drawn out of it and replaced in the båg. Then a ball is drawn again. What is the probability that (i) both the balls drawn were black, (ii) both were white, (iii) the first ball was white and the second black, (iv) the first ball was black and the second white.
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 4 from the third. For verification, one product was tested. Find the probability that it is valid.
A certain young lady is out to find a new boyfriend. She knows from Wikipedia that 40% of all men in her age range have black hair, 30% brown, 20% blonde, 5% red and 5% other. If she goes on 15 dates with random guys from the pool of eligible boys, what is the probability that 8 have black hair, 3 brown, 3 blonde, and 1 red?
You have a Jar with 100 M & M's. 24 of them are Blue, 13 are Brown, 16 are Green, 20 are Orange, 13 are Red, and 14 are Yellow. What is the probability of selecting 3 Yellow M & M's without replacement?
12. A bag contains 6 red and 3 white balls. Four balls are drawn out one by one and not replaced. What is the probability that they are alternatively of different colours.

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