×
Log in to StudySoup
Get Full Access to A First Course In Probability - 9 Edition - Chapter 3 - Problem 65p
Join StudySoup for FREE
Get Full Access to A First Course In Probability - 9 Edition - Chapter 3 - Problem 65p

Already have an account? Login here
×
Reset your password

Assume, as in Example 3h, that 64 percent of twins are of

A First Course in Probability | 9th Edition | ISBN: 9780321794772 | Authors: Sheldon Ross ISBN: 9780321794772 63

Solution for problem 65P Chapter 3

A First Course in Probability | 9th Edition

  • Textbook Solutions
  • 2901 Step-by-step solutions solved by professors and subject experts
  • Get 24/7 help from StudySoup virtual teaching assistants
A First Course in Probability | 9th Edition | ISBN: 9780321794772 | Authors: Sheldon Ross

A First Course in Probability | 9th Edition

4 5 1 282 Reviews
20
5
Problem 65P

Problem 65P

Assume, as in Example 3h, that 64 percent of twins are of the same sex. Given that a newborn set of twins is of the same sex, what is the conditional probability that the twins arc identical?

Step-by-Step Solution:

Answer

Step 1 of 1

(a)

We are asked to find the conditional probability that the twins are identical given that a newborn set of twins is of the same sex.

Assume, as in Example 3h, that 64 percent of twins are of the same sex.

Let  denote the twins being identical.

The probability of twins being identical is given by using the example 3h,

Let  denote the twins being of the same sex.

The probability of twins being of the same sex is given by,

We are asked to find the conditional probability

Using Bayes’ rule we can write that

[The conditional probability of twins being of the same sex given that the twins being identical would be , since the identical twins are always of the same sex]

Hence the conditional probability that the twins are identical given that a newborn set of twins is of the same sex is


Step 2 of 1

Chapter 3, Problem 65P is Solved
Textbook: A First Course in Probability
Edition: 9
Author: Sheldon Ross
ISBN: 9780321794772

Other solutions

People also purchased

Related chapters

Unlock Textbook Solution

Enter your email below to unlock your verified solution to:

Assume, as in Example 3h, that 64 percent of twins are of