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Probability and Statistical Inference | 9th Edition | ISBN: 9780321923271 | Authors: Robert V. Hogg, Elliot Tanis, Dale Zimmerman
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An urn contains two red balls and four white balls. Sample

Chapter 1, Problem 13E

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QUESTION:

PROBLEM 13E

An urn contains two red balls and four white balls. Sample successively five times at random and with replacement, so that the trials are independent. Compute the probability of each of the two sequences WWRWR and RWWWR.

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QUESTION:

PROBLEM 13E

An urn contains two red balls and four white balls. Sample successively five times at random and with replacement, so that the trials are independent. Compute the probability of each of the two sequences WWRWR and RWWWR.

ANSWER:

Answer:

Step 1 of 3:

           Given that, an urn contain 2 red balls and 4 white balls.

           Let R = red ball,

           Let W = white ball.

          Then, total balls = R + W

                                     = 2 + 4

                                     = 6.

  Therefore,

                 P(2 red balls) =

                                 =

    And   P( 4 white balls) =

                                   =  

   

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