In a class of students, the following data table summarizes how many students have abrother or a sister. What is the probability that a student has a brother given that theyhave a sister?Has a brother Does'not have a brotherHas a sister10Does not have a sister123

Answered: In a class of students, the following…

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

If two people are chosen with replacement from the data, what is the probability that both are wearing athletic shoes and the second is a woman wearing dress shoes?
At the beginning of the semester, a professor tells The professor informs the class that there will be a students that if they study for the tests, then there is a 55% chance they will get a B or higher on the tests. If test next week. What is the probability that a randomly selected student studied if they do not pass the test with a B or higher? they do not study, there is a 20% chance that they will get a B or higher on the tests. The professor knows from prior surveys that 60% of students study for the tests. The probabilities are displayed in the tree diagram. O 0.45 O 0.46 O 0.54 O 0.59 Gets B or 0.55 higher Studies for test Does not get B or higher 0.6 0.45 Random student Gets B or 0.20 04 Does not higher Mark this and return Save and Exit Next Subrnit DELL F3 F4- F5 F6 F7 F8 F9 F10 F11 F12 PriScr Inser %2$ 4. 8. R T Y 4 H K 近

Suppose that 68% of people own dogs. If you pick two people at random, what is the probability that they both own a dog? Give your answer as a decimal rounded to 4 places.
There is about a 10% chance of being left- handed. If there are 25 students in a class, find the probability that no more than 3 are left-handed.
A golf ball is selected at random from a golf bag. If the golf bag contains 8 yellow balls, 13 red balls, and 3 green balls, find the probability of the following event. The golf ball is yellow or red.
Suppose that 38% of people own dogs. If you pick two people at random, what is the probability that they both own a dog? Give your answer as a decimal rounded to 4 places.
Pet owners often have more than one type of pet. A recent survey shows that 70% own a dog, 44% own a cat, and 30% own both a dog and cat. Suppose a person is randomly selected. Determine the probability this person 1. has a dog or a cat or both. 2. does not have a dog nor a cat. 3. only has a dog. 4. Given the person has a dog, what is the probability that this person has a cat?
A bag contains eight balls: 3 red, 3 green, and 2 blue. You sample three balls without replacement. What is the probability that you get a red ball, then a green ball, then a blue ball?
Suppose that 57% of people own dogs. If you pick two people at random, what is the probability that they both own a dog?Give your answer as a decimal rounded to 4 places.
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In a class of students, the following data table summarizes how many students have a brother or a sister. What is the probability that a student has a brother given that they have a sister? Has a brother Does'not have a brother Has a sister 10 Does not have a sister 12